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Old 2020-12-02, 12:14   #122
Max0526
 
"Max"
Jun 2016
Toronto

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Default C213 poly

Thank you, Gimarel!
EdH's script already found a 1.327e-15 spin after 1.5 hours of work. It's getting posted here later.
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Old 2020-12-02, 15:42   #123
Max0526
 
"Max"
Jun 2016
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Default C213 poly

Credit to EdH's script:
Code:
# Best polynomial found:
n: 105846620118997527795673923816494096564538879551655755948941841181964527982935974672375053674066636955526325748344171237200759216056332103525354574858042635016393534861038293333116405407677018242280598840418822711
Y0: -66175507466676477845668491119429817
Y1: 284594098468775320577861
c0: -626081313147184760199029071786307655596384808000
c1: 114155706290582003827015758825221679754150
c2: 9698330805779200485429519766575815
c3: -1612013188384034013354246592
c4: -71413365342160076609
c5: 2982285821808
c6: 45360
skew: 15664544.853
# lognorm 59.63, E 49.29, alpha -10.34 (proj -2.10), 4 real roots
# MurphyE(Bf=1.00e+07,Bg=5.00e+06,area=1.00e+16)=1.33e-15
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Old 2020-12-02, 22:06   #124
Max0526
 
"Max"
Jun 2016
Toronto

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Default C213 poly

One good runner up so far with a different c6:
Code:
n: 105846620118997527795673923816494096564538879551655755948941841181964527982935974672375053674066636955526325748344171237200759216056332103525354574858042635016393534861038293333116405407677018242280598840418822711
Y0: -33087919915374078450166476968066125
Y1: 284594098468775320577861
c0: -185935650568179626838727799090310284661328279416
c1: 42694807496355583403168179041765607299754
c2: 14715481736892655045826399903389697
c3: -2478364234089035240664896728
c4: -351598952724215216516
c5: 21315543594624
c6: 725760
skew: 8862377.27
# size 3.332e-15, alpha -10.428, combined = 1.239e-15 rroots = 4
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Old 2020-12-04, 00:23   #125
Max0526
 
"Max"
Jun 2016
Toronto

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Default C213 poly

Quote:
Originally Posted by Max0526 View Post
Thank you, Gimarel!
EdH's script already found a 1.327e-15 spin after 1.5 hours of work. It's getting posted here later.
The best one so far has E = 1.329e-15 (same as listed in #123 but with the skew adjusted by cownoise):
Code:
Y0: -66175507466676477845668491119429817
Y1: 284594098468775320577861
c0: -626081313147184760199029071786307655596384808000
c1: 114155706290582003827015758825221679754150
c2: 9698330805779200485429519766575815
c3: -1612013188384034013354246592
c4: -71413365342160076609
c5: 2982285821808
c6: 45360
skew: 17403269.80
# size 3.589e-15, alpha -10.342, combined = 1.329e-15 rroots = 4

Last fiddled with by Max0526 on 2020-12-04 at 00:58
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Old 2020-12-04, 08:02   #126
VBCurtis
 
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"Curtis"
Feb 2005
Riverside, CA

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Quote:
Originally Posted by VBCurtis View Post
Proceeding to 10-20M, P=9M, incr=420, nq=7776.
Best from this range was worse- 2.412e-9 CADO score, 8.55e-16 cownoise score.

Trying one more range: 50-100M, incr=4620, P=12M.
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Old 2020-12-07, 18:27   #127
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50-100M also produced an uninteresting poly, 2.36e-9 CADO score. I didn't bother scoring it on cownoise.

I'll take a break from poly select on this; if we go a week without anyone mentioning their own work, I'll proceed to test-sieve a couple of the Gimarel polys / spun polys and report back.

My university's finals are next week, so a test-sieve update may be a couple weeks.
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Old 2020-12-17, 10:05   #128
Gimarel
 
Apr 2010

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I'm getting about one poly above 9e-16 every two days. But I have only one other poly above 1e-15:
Code:
# norm 3.142643e-15 alpha -10.150719 e 1.047e-15 rroots 6
skew: 32735264.47
c0: -1458941306924214497238414755288941116595669241984
c1: 328086727529944752079338017908152680356568
c2: 124948226004864751218752052035801006
c3: 399479688567506061158385517
c4: -171971260452149860557
c5: 308009780520
c6: 21840
Y0: -70805038115464834890936271979760447
Y1: 147488824070009992839079
I have stopped my search.
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Old 2021-10-04, 20:33   #129
kruoli
 
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Sep 2017
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Quote:
Originally Posted by VBCurtis View Post
My university's finals are next week, so a test-sieve update may be a couple weeks.
How's it going?
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Old 2021-10-04, 22:31   #130
VBCurtis
 
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I got no sense that anyone particularly wanted to sieve this number, and lost interest by the time I had time for a test-sieve.
I don't mind spending a couple hours on a test-sieve, but I'm not doing that until I know whether I should optimize for a CADO job or a GGNFS job.
On ggnfs it's best as a 33/34LP and our lim's are capped by NFS@home memory bounds; on CADO it could be any of 33/34, 34/34, 34/35, and lim's would be much higher and an open question for a test-sieve.

Ryan just sieved a C220 on CADO with 34/35 bounds; I await his data on Q-range and relation counts to help us make future determinations about when to choose among the above LP options.
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Old 2021-10-06, 06:26   #131
bur
 
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79*6581e-4;3*2539e-3

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I think it would be a very interesting number since 276 is both the smallest open-ended aliquot-sequence which also makes it part of the Lehmer 5. But since I don't have any means to sieve this it doesn't say much, just that I'm interested in seeing the results... ;)

BTW, I'm still working on determining the dups-rate for that c167 depending on the q-range. At least so far it looks like there's a minimum at around q-max/q-min = 7-8 and then it increases again. Should be done by next week.
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Old 2021-10-16, 11:37   #132
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Quote:
Originally Posted by VBCurtis View Post
I got no sense that anyone particularly wanted to sieve this number, and lost interest by the time I had time for a test-sieve.
I don't mind spending a couple hours on a test-sieve, but I'm not doing that until I know whether I should optimize for a CADO job or a GGNFS job.
On ggnfs it's best as a 33/34LP and our lim's are capped by NFS@home memory bounds; on CADO it could be any of 33/34, 34/34, 34/35, and lim's would be much higher and an open question for a test-sieve.

Ryan just sieved a C220 on CADO with 34/35 bounds; I await his data on Q-range and relation counts to help us make future determinations about when to choose among the above LP options.
Is it time to revisit the sequence? I think it could be test sieved with current tools, though the full sieving would need to be a group effort.

Post processing is another roadblock. Wonder if Greg or Ryan would be willing to help?
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