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Old 2011-01-02, 11:33   #210
roger
 
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Oct 2006

22·5·13 Posts
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Again just an update; I broke up the various ranges above n=11000 to define the ranges searched.

10100<n<11000 k<1e8 done
10100<n<11000 1e8<k<2e8 76% done
10100<n<11000 2e8<k<3e8 8% done
total: 95.55% done (853 found)

11000<n<12000 k<5e6 done
11000<n<12000 5e6<k<1e7 20% done
total: 11.01% done (110 found)

12000<n<13000 k<5e6 done
total: 9.61% done (96 found)

13000<n<14000 k<1e6 done
13000<n<14000 1e6<k<5e6 50% done
total: 4.51% done (45 found)

Grand totals:
n<10100 done
10100<n<14000 36.8% done (1104 found)
14000<n<48500 0.368% done (127 found)
n<50000 22.66% done (11331 found)

I suggest that once we get to an arbitrary landmark that we/I do a doublecheck of the twins found - it shouldn't take too long at least for n<10000.
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Old 2011-01-05, 05:18   #211
roger
 
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Oct 2006

22·5·13 Posts
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Alright - 10000<n<11000 done:
Post is limited to 10000 characters so here's part 1:

Code:
10001	8590875
10002	2481813
10003	12176169
10004	10808517
10005	3257595
10006	12110457
10007	1374729
10008	227547
10009	14244069
10010	150948123
10011	72422541
10012	54737307
10013	91370475
10014	31429725
10015	83108115
10016	21374157
10017	58030515
10018	114719313
10019	2312475
10020	3951915
10021	23326035
10022	25989393
10023	24889449
10024	63039885
10025	71967165
10026	64747767
10027	373065
10028	81900633
10029	24122709
10030	16441797
10031	9849165
10032	52551417
10033	45807981
10034	33532503
10035	53427645
10036	8565165
10037	82650789
10038	93288447
10039	9265179
10040	656043
10041	42198111
10042	26227917
10043	17947665
10044	64214325
10045	13415859
10046	32375295
10047	7272879
10048	16033947
10049	22273185
10050	11676465
10051	13216161
10052	3017337
10053	22008525
10054	28473507
10055	51361149
10056	28777107
10057	34771071
10058	11157933
10059	6807441
10060	26415387
10061	74943855
10062	33674337
10063	65275461
10064	284085
10065	2949699
10066	66795717
10067	28337835
10068	190543167
10069	141900591
10070	28401645
10071	39394929
10072	47134263
10073	13541769
10074	40199187
10075	41951811
10076	76338255
10077	28154991
10078	789417
10079	34569501
10080	21856413
10081	27200781
10082	10830897
10083	45897351
10084	2309403
10085	4024905
10086	1965687
10087	26877345
10088	34328073
10089	23160471
10090	22686705
10091	9359445
10092	119311617
10093	46278891
10094	201465873
10095	126124605
10096	23979615
10097	111128181
10098	12759705
10099	27819945
10100	68071137
10101	57417075
10102	112768377
10103	1706361
10104	684507
10105	64225341
10106	14041413
10107	32848155
10108	5871627
10109	33379431
10110	118305
10111	56013099
10112	38324433
10113	23708739
10114	8605143
10115	74070429
10116	30726027
10117	24098661
10118	75946275
10119	43473951
10120	22842303
10121	600291
10122	59527263
10123	70469079
10124	4473435
10125	20571639
10126	13620003
10127	9832035
10128	83936157
10129	6777645
10130	7953525
10131	28681455
10132	27328467
10133	35564175
10134	2644005
10135	13873599
10136	68541117
10137	11239179
10138	29032005
10139	58553565
10140	7663047
10141	1235991
10142	3139065
10143	27850455
10144	23531865
10145	23028645
10146	27600687
10147	13893999
10148	5039055
10149	10829991
10150	12985407
10151	35216409
10152	19313403
10153	37212939
10154	48486015
10155	119630145
10156	85381935
10157	102052605
10158	93280905
10159	27295749
10160	17949915
10161	17910639
10162	54690855
10163	73175259
10164	59709297
10165	5473971
10166	39329727
10167	19187835
10168	29264103
10169	72144645
10170	4464897
10171	46802085
10172	204228273
10173	5762925
10174	23765505
10175	44961669
10176	37810773
10177	23914329
10178	39648687
10179	33519981
10180	89197563
10181	15464781
10182	42249783
10183	2264955
10184	65300235
10185	58090959
10186	78075075
10187	268521
10188	7213143
10189	9971901
10190	83313423
10191	133781541
10192	133076295
10193	218509641
10194	497595
10195	55415121
10196	3458727
10197	76574505
10198	25978863
10199	96631275
10200	26316867
10201	40145145
10202	29122887
10203	26702349
10204	392013
10205	23861145
10206	59327457
10207	65409531
10208	7729455
10209	9744501
10210	695427
10211	43324119
10212	11673405
10213	549129
10214	5948697
10215	11500911
10216	12278643
10217	76575171
10218	101141373
10219	101368035
10220	6783825
10221	8139021
10222	31722873
10223	12093021
10224	7957107
10225	99279699
10226	10024137
10227	46730301
10228	8200725
10229	9006291
10230	134672937
10231	36204441
10232	42015105
10233	67633755
10234	11612127
10235	8194635
10236	12433575
10237	564585
10238	6367155
10239	32196411
10240	13672155
10241	318969
10242	26353383
10243	76591011
10244	53675163
10245	9041631
10246	27915735
10247	1506879
10248	33483957
10249	7289751
10250	105700305
10251	148472775
10252	34400493
10253	3467355
10254	12529995
10255	11127849
10256	46955073
10257	3285249
10258	5492055
10259	190005501
10260	37669803
10261	39596415
10262	30766047
10263	10031331
10264	8946117
10265	86113161
10266	11251095
10267	58346631
10268	42030813
10269	20396775
10270	23612547
10271	61005525
10272	93808725
10273	29075355
10274	72654555
10275	8753055
10276	9328773
10277	104753571
10278	26228493
10279	7142541
10280	24023133
10281	98536671
10282	23011113
10283	33821199
10284	20817507
10285	237598311
10286	2219853
10287	4457481
10288	7693155
10289	23744889
10290	48171303
10291	9691899
10292	52269483
10293	3549639
10294	8977233
10295	23065605
10296	25778865
10297	84115599
10298	28432335
10299	35427411
10300	56055243
10301	1249059
10302	22346007
10303	111934059
10304	5368065
10305	6140655
10306	4751523
10307	39306201
10308	8688375
10309	21959055
10310	46428477
10311	6262659
10312	7742415
10313	38935341
10314	8728533
10315	14706411
10316	100397013
10317	31333449
10318	12670587
10319	30709701
10320	2003643
10321	34349091
10322	68668617
10323	49199901
10324	5875407
10325	3924225
10326	24888153
10327	19341741
10328	90822645
10329	18688341
10330	13252797
10331	111072741
10332	54018675
10333	46655601
10334	5535555
10335	98324061
10336	45135015
10337	12716001
10338	81627123
10339	3600099
10340	136352355
10341	28339521
10342	104560287
10343	45955545
10344	18124095
10345	1803501
10346	33809943
10347	4691865
10348	1534323
10349	79135941
10350	61296153
10351	8829039
10352	28237695
10353	1059399
10354	43830753
10355	198143709
10356	27045093
10357	35617281
10358	10712667
10359	28143771
10360	44078685
10361	20148369
10362	42991683
10363	44798679
10364	9254097
10365	1361841
10366	4264575
10367	9546069
10368	13249623
10369	2900091
10370	15594573
10371	8036721
10372	134050743
10373	3202329
10374	40342605
10375	6274359
10376	11955423
10377	157256535
10378	38425653
10379	5727459
10380	7189737
10381	42648531
10382	31134723
10383	70985451
10384	31258305
10385	48474621
10386	21883113
10387	11710389
10388	9842685
10389	25835829
10390	12660177
10391	8245821
10392	37873923
10393	35043099
10394	73660947
10395	32178429
10396	17187795
10397	30569175
10398	173961057
10399	17222751
10400	12246507
10401	28985205
10402	32683113
10403	165733191
10404	30930573
10405	121470441
10406	2757483
10407	45399795
10408	56812377
10409	12384705
10410	3016293
10411	2173731
10412	11527377
10413	6010959
10414	59508423
10415	62333355
10416	1712193
10417	43179099
10418	82862697
10419	77836245
10420	174943197
10421	80940105
10422	13759365
10423	29182959
10424	27181953
10425	131102199
10426	14660997
10427	11834865
10428	48699513
10429	6979611
10430	95080275
10431	38744361
10432	18553437
10433	3400089
10434	21554697
10435	10334751
10436	11698785
10437	1113795
10438	37928793
10439	37233525
10440	63591183
10441	76753689
10442	84927597
10443	10044279
10444	11892195
10445	13817229
10446	39874707
10447	24658551
10448	12154107
10449	25129275
10450	16573905
10451	28270059
10452	40792707
10453	35834265
10454	39871143
10455	17421549
10456	24984927
10457	28875249
10458	1730883
10459	45970881
10460	27942585
10461	12063621
10462	2277015
10463	20940945
10464	37045575
10465	32849985
10466	51730083
10467	5812341
10468	2215395
10469	28234599
10470	27504867
10471	3096309
10472	13569315
10473	1740021
10474	63011943
10475	17578275
10476	48101823
10477	31288479
10478	4116267
10479	37056399
10480	85101645
10481	131059509
10482	117507747
10483	34495911
10484	403113
10485	84032205
10486	67798815
10487	41766591
10488	53451687
10489	125927409
10490	60077283
10491	18082335
10492	9127047
10493	2622171
10494	33757707
10495	3762759
10496	1804905
10497	13785441
10498	59936385
10499	8776131
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Old 2011-01-05, 05:19   #212
roger
 
roger's Avatar
 
Oct 2006

22×5×13 Posts
Default

Part 2:

Code:
10500	160815
10501	71504715
10502	107853
10503	22870419
10504	98494137
10505	15311709
10506	86735355
10507	74594205
10508	22586907
10509	63418605
10510	32834775
10511	82824255
10512	35610867
10513	94276275
10514	11660817
10515	73045371
10516	68198325
10517	80773035
10518	5177307
10519	663531
10520	29706543
10521	4123845
10522	58891323
10523	166152921
10524	65633223
10525	5206551
10526	49261323
10527	18907641
10528	29935215
10529	77156199
10530	5967705
10531	20210511
10532	8451093
10533	291499911
10534	17888493
10535	17586939
10536	47741967
10537	20594751
10538	33892383
10539	68552181
10540	23747025
10541	1722129
10542	894933
10543	29243709
10544	38332377
10545	8404149
10546	114073077
10547	16401291
10548	20520843
10549	49965081
10550	6790743
10551	103651431
10552	248313
10553	73532985
10554	6713625
10555	6881559
10556	23327703
10557	28483761
10558	26966655
10559	14427969
10560	3108525
10561	35013321
10562	6473967
10563	5720025
10564	12911103
10565	8588961
10566	83627997
10567	58120071
10568	35335905
10569	51203289
10570	82762083
10571	58331325
10572	37085445
10573	19086909
10574	6328515
10575	33820845
10576	95191557
10577	154923111
10578	53820825
10579	17205915
10580	40812765
10581	62516529
10582	54850797
10583	27891291
10584	61847145
10585	2175501
10586	2316873
10587	38163615
10588	8933883
10589	135362871
10590	2001723
10591	51472629
10592	33773835
10593	55248891
10594	15150333
10595	74918241
10596	27492717
10597	2243649
10598	21014895
10599	125215365
10600	6537225
10601	10941
10602	7018617
10603	66183651
10604	62464485
10605	113485551
10606	48853035
10607	18362505
10608	14548245
10609	5562891
10610	4142835
10611	17206815
10612	24747543
10613	2104449
10614	40674777
10615	12905349
10616	30500373
10617	645171
10618	12535383
10619	46997409
10620	54086835
10621	29953275
10622	12908043
10623	6063969
10624	29250723
10625	130972941
10626	46528995
10627	90338079
10628	53538765
10629	51243411
10630	121791543
10631	117895995
10632	5111295
10633	33995121
10634	99149967
10635	11678601
10636	18369465
10637	134784189
10638	16153707
10639	100740435
10640	124109187
10641	27528501
10642	39797127
10643	11304405
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10645	14123265
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10647	125782521
10648	37817835
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10650	5395227
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10652	16377063
10653	26847741
10654	10392873
10655	52560171
10656	105451773
10657	131539941
10658	22409607
10659	124951839
10660	61811703
10661	22992501
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10663	6137271
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10666	12158193
10667	67172349
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10670	11779827
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10673	3632499
10674	14436537
10675	18191859
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10680	599277
10681	56326629
10682	89381187
10683	74138811
10684	18411003
10685	97528725
10686	9434763
10687	10779939
10688	75734907
10689	30130005
10690	65592357
10691	33544221
10692	18828303
10693	32342205
10694	161143377
10695	17705019
10696	22175127
10697	4530939
10698	15060147
10699	7289655
10700	2557737
10701	65799555
10702	33437685
10703	16616799
10704	140751903
10705	11090679
10706	20096475
10707	119213745
10708	12981603
10709	7053651
10710	23707203
10711	49923819
10712	38447433
10713	2302599
10714	18566577
10715	51826425
10716	44259453
10717	47958261
10718	39214917
10719	50909301
10720	46367337
10721	115958751
10722	59938713
10723	37343301
10724	145678977
10725	178575705
10726	65718513
10727	19570365
10728	28325157
10729	6777645
10730	18329667
10731	54163581
10732	13798587
10733	55291701
10734	24304893
10735	76684335
10736	77088855
10737	29077059
10738	24202467
10739	30991425
10740	69061083
10741	74503119
10742	104001243
10743	38529621
10744	36255687
10745	35038179
10746	4236255
10747	150054381
10748	77194323
10749	9626085
10750	14073975
10751	20175189
10752	6376095
10753	75653535
10754	41912643
10755	33989919
10756	38725653
10757	12147129
10758	81424557
10759	85579845
10760	22463193
10761	143234859
10762	5290053
10763	52756449
10764	3735357
10765	42025755
10766	87018897
10767	11710269
10768	12507963
10769	84786885
10770	8703483
10771	15253125
10772	44925315
10773	21698715
10774	25119585
10775	2728239
10776	35674503
10777	17176059
10778	2407755
10779	26548701
10780	61472097
10781	1490091
10782	295738833
10783	10387641
10784	62830587
10785	66212205
10786	3125577
10787	170618865
10788	108416325
10789	113480025
10790	91610277
10791	124752999
10792	21274545
10793	19967619
10794	9507087
10795	59851899
10796	19421805
10797	5986125
10798	59120997
10799	28983345
10800	50583867
10801	165628905
10802	132911625
10803	9170655
10804	226773
10805	148105989
10806	15910773
10807	69697689
10808	62173917
10809	34775745
10810	6974547
10811	21310461
10812	12733347
10813	27962529
10814	283683933
10815	83396379
10816	65742207
10817	51200349
10818	6750315
10819	40076241
10820	2456517
10821	10863225
10822	1164777
10823	64393755
10824	131878185
10825	39240165
10826	52065363
10827	41791311
10828	40311705
10829	7958811
10830	116408673
10831	28986459
10832	9403467
10833	28849599
10834	2710785
10835	126691209
10836	33270345
10837	36863385
10838	151918437
10839	19664979
10840	30023097
10841	27961629
10842	91017657
10843	33245415
10844	78376683
10845	12701511
10846	88614567
10847	14753271
10848	7147803
10849	35464275
10850	2872755
10851	4608441
10852	117492447
10853	67692045
10854	74297205
10855	117251625
10856	7056003
10857	127089615
10858	85045053
10859	187557975
10860	119303985
10861	12389139
10862	4880673
10863	43817169
10864	32359035
10865	2273235
10866	118283427
10867	45589881
10868	34773357
10869	190357821
10870	30508035
10871	92145585
10872	32430843
10873	6995379
10874	14843847
10875	3135171
10876	108781083
10877	19291941
10878	48350313
10879	15779115
10880	42264807
10881	4943325
10882	1264863
10883	33299769
10884	143791035
10885	20165691
10886	114235857
10887	1498221
10888	55572153
10889	17093145
10890	15650817
10891	51024141
10892	36544053
10893	4841889
10894	20763177
10895	41338941
10896	253575
10897	8565801
10898	42802593
10899	49522869
10900	101973573
10901	669351
10902	42869493
10903	15256059
10904	39079503
10905	35495145
10906	10932285
10907	8174109
10908	32799273
10909	12474021
10910	7979955
10911	40760589
10912	28255893
10913	17359611
10914	5457357
10915	22754769
10916	55808577
10917	72132951
10918	71558565
10919	54303399
10920	6514293
10921	33105849
10922	4912305
10923	5603001
10924	17046447
10925	49184439
10926	13730685
10927	22274049
10928	130837155
10929	34911
10930	11945283
10931	352631601
10932	11412993
10933	37796835
10934	15866007
10935	105087651
10936	13458783
10937	13517895
10938	48528555
10939	48627381
10940	17256627
10941	300734229
10942	11996517
10943	10657221
10944	113968515
10945	23498109
10946	31840875
10947	13164525
10948	33783357
10949	11761749
10950	15461553
10951	32648229
10952	105920787
10953	160659405
10954	32407107
10955	129795309
10956	140357835
10957	174606081
10958	162991353
10959	109683651
10960	16016553
10961	27964455
10962	123806715
10963	17886639
10964	11544687
10965	6639609
10966	11893905
10967	12150831
10968	112934787
10969	6319185
10970	28326147
10971	111294351
10972	265543335
10973	5941755
10974	6585015
10975	10421811
10976	20068293
10977	187089
10978	101848467
10979	4914591
10980	107049693
10981	18930435
10982	5029245
10983	20019375
10984	33838413
10985	1876395
10986	17403123
10987	14391315
10988	120185925
10989	17244255
10990	19132647
10991	10889649
10992	3665253
10993	6744681
10994	10596663
10995	34483179
10996	4032147
10997	17761695
10998	472203
10999	5751159


Ranges currently in progress:

11000<n<12000 k<5e6 done.
11000<n<12000 5e6<k<1e7 50% done
total: 13.7% done

12000<n<13000 k<5e6 done
total: 9.6% done

13000<n<14000 1e6<k<5e6 86% done.
total: 6.7% done.

0<n<48500 k<1e6 done.


Currently working on/range reserved:
11000<n<15000 all k's
progress: 311 found = 7.78% done

Last fiddled with by roger on 2011-01-05 at 05:52
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Old 2011-01-06, 22:21   #213
MooMoo2
 
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Now that more data is in, could this graph:
http://www.mersenneforum.org/showpos...&postcount=164
be updated?

Also, someone could try finishing off this table:
Code:
Range            Smallest First Twin k       n-value
1000-2000           177                        1032
2000-3000          4359                        2191
3000-4000          1149                        3283
4000-5000          2565                        4901
 
5000-6000          5775                        5907
6000-7000          4737                        6634
7000-8000         33957                        7768
8000-9000           459                        8529
9000-10000        33891                        9869
 
10000-11000       10941                       10601
11000-12000         915                       11455
12000-13000       73005                       12178
13000-14000        3981                       13153
14000-15000      175161                       14171
 
15000-16000       74193                       15770
16000-17000      138153                       16436
17000-18000       14439                       17527
18000-19000       56361                       18989
19000-20000       53889                       19817
 
20000-21000        7485                       20023
21000-22000      195045                       21432
22000-23000       31257                       22312
23000-24000      396213                       23672
24000-25000      177141                       24365
 
25000-26000      577065                       25879
26000-27000      182697                       26172
27000-28000       70497                       27652
28000-29000      445569                       28353
29000-30000      815751                       29705
 
30000-31000      249435                       30977
31000-32000      440685                       31989
32000-33000       51315                       32430
33000-34000      143835                       33826
34000-35000      959715                       34895
 
35000-36000      338205                       35351
36000-37000       47553                       36172
37000-38000       >1M                          ???
38000-39000       >1M                          ???
39000-40000       >1M                          ???
 
40000-41000      604329                       40315
41000-42000      358965                       41653
42000-43000      272139                       42379
43000-44000      441201                       43167
44000-45000       >1M                          ???
 
45000-46000      311541                       45439
46000-47000       >1M                          ???
47000-48000      103893                       47122
48000-49000       ???                          ???
49000-50000       ???                          ???
and plotting a trendline.
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Old 2011-01-08, 03:54   #214
roger
 
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Regarding the graph abovementioned, I didn't use the correct method as talked about earlier in this thread and specifically by RD Silverman and Robert44444uk here.

I guess I'll finish off the k's<1M up to n=50000 to help with the list there, but an organized bottom-up search is obviously preferable to an individualistic one here.

And an update:

11000<n<12000 k<5e6 done.
11000<n<12000 5e6<k<1e7 86% done
11000<n<12000 1e7<2.5e7 22% done
total: 22.5% done

12000<n<13000 k<5e6 done.
total: 9.6% done

13000<n<14000 k<5e6 done.
total: 8.1% done

14000<n<15000 1e6<k<5e6 23% done
total: 2% done

Last fiddled with by roger on 2011-01-08 at 04:02
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Old 2011-01-15, 02:51   #215
roger
 
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Just a note: There's a typo in the database webpage on the last graph where it says "Here is a graph with some more higher n-values, including all first twins for 10,000 < n <46,000 and k < 100,000 found by G.Barnes."
I believe he searched for k < 1,000,000, and (an update) that range was extended to n=48000.
Also, if we're crediting the participants here, my name is R. Pierrard.

Not much change for my ranges recently as I've been finishing off n<50000 k<1M. As soon as that's done the efforts will be shifted to filling the chart up from the smallest missing n.

Last fiddled with by roger on 2011-01-15 at 02:58
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Old 2011-01-15, 21:23   #216
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Quote:
Originally Posted by MooMoo2 View Post
Also, someone could try finishing off this table:
Code:
Range            Smallest First Twin k       n-value
1000-2000           177                        1032
...
37000-38000       >1M                          ???
38000-39000       >1M                          ???
39000-40000       >1M                          ???
 
40000-41000      604329                       40315
...
and plotting a trendline.
Your table is wrong; there are twins <1M for n=37000-40000.
201843*2^37630+/-1 is twin, and so are 683145*2^38746+/-1 and 126423*2^2^39606+/-1. But I don't blame you, as http://www.rieselprime.de/Related/FirstKTwin.htm doesn't have those twins either.

The correct table is below.
Code:
Range            Smallest First Twin k       n-value
1000-2000           177                        1032
2000-3000          4359                        2191
3000-4000          1149                        3283
4000-5000          2565                        4901
 
5000-6000          5775                        5907
6000-7000          4737                        6634
7000-8000         33957                        7768
8000-9000           459                        8529
9000-10000        33891                        9869
 
10000-11000       10941                       10601
11000-12000         915                       11455
12000-13000       73005                       12178
13000-14000        3981                       13153
14000-15000      175161                       14171
 
15000-16000       74193                       15770
16000-17000      138153                       16436
17000-18000       14439                       17527
18000-19000       56361                       18989
19000-20000       53889                       19817
 
20000-21000        7485                       20023
21000-22000      195045                       21432
22000-23000       31257                       22312
23000-24000      396213                       23672
24000-25000      177141                       24365
 
25000-26000      577065                       25879
26000-27000      182697                       26172
27000-28000       70497                       27652
28000-29000      445569                       28353
29000-30000      815751                       29705
 
30000-31000      249435                       30977
31000-32000      440685                       31989
32000-33000       51315                       32430
33000-34000      143835                       33826
34000-35000      959715                       34895
 
35000-36000      338205                       35351
36000-37000       47553                       36172
37000-38000      201843                       37630
38000-39000      683145                       38746
39000-40000      126423                       39606
 
40000-41000      604329                       40315
41000-42000      358965                       41653
42000-43000      272139                       42379
43000-44000      441201                       43167
44000-45000       >1M                          ???
 
45000-46000      311541                       45439
46000-47000       >1M                          ???
47000-48000      103893                       47122
48000-49000       ???                          ???
49000-50000       ???                          ???

Last fiddled with by Oddball on 2011-01-15 at 21:25
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Old 2011-01-28, 04:39   #217
roger
 
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Update again:

11000<n<12000 k<2.5e7 done.
11000<n<12000 2.5e7<k<5e7 23% done
total: 46.4% done

14000<n<15000 k<1e6 done.
14000<n<15000 2.5e6<k<5e6 53.6% done
total: 4.1% done

n-groups of 12000, and 13000 are unchanged as I've been finishing the n<50000 k<1M group:

0<n<49796 done
so far have found:
n|k
48501 694599
49195 852861
49733 197109

Total complete:
n<11000: 100%
n<15000: 77.9% (11690 found)
n<25000: 47.0% (11758 found)
n<40000: 29.5% (11792 found)
n<100000: 11.8% (11811 found)
n<200000: 5.91% (11814 found + confirmed)
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Old 2011-01-28, 05:42   #218
roger
 
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Also, using the data provided above for lowest twin k per thousand n-values (and incorporating those just found), I have some figures:
Using the extreme points on a log-log chart, angles to each maximum point are:
22.071 (narrow upper bound)
22.691 (wide upper bound)
27.511 (narrow lower bound)
26.528 (wide lower bound).

Averages:
22.381 (upper bound)
27.019 (lower bound)

Average of averages for each (with manner of determination in brackets):
24.609 (wide)
24.791 (narrow)
24.700 (average of upper/lower bound)

As you can see, there's quite a bit of agreement (maximum variation of 0.37% = 0.09°), so I think there's some validity.

I don't really know what this would be used for for the search, but I suppose it's interesting.

Quote:
201843*2^37630+/-1 is twin, and so are 683145*2^38746+/-1 and 126423*2^2^39606+/-1.
Where'd these come from? I don't have them on my chart either...

Last fiddled with by roger on 2011-01-28 at 06:30
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Old 2011-01-28, 06:45   #219
Oddball
 
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Quote:
201843*2^37630+/-1 is twin, and so are 683145*2^38746+/-1 and 126423*2^2^39606+/-1.
Quote:
Originally Posted by roger View Post
Where'd these come from? I don't have them on my chart either...
They came from here:

http://www.noprimeleftbehind.net/gary/twins1M.htm
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Old 2011-01-28, 09:47   #220
kar_bon
 
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I'll try to get all twins from the Top5000 list (from id=1 to current, ~97800) this weekend.

And also update my FirstKTwin-page, then.
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