I've also finished my C205 search; my last runs produced a couple of 1.8's but no 1.9's, nothing worth sharing.

In another thread Max asked for a candidate or two for possible CADO poly search. I'm finishing up ECM on my next GNFS task, a C180:
[code]129935029124498074730749380539917098931389799839746892365905438291588962010936511202015258027562930091029474281450215050735485012865619531388424716508987099399327718756603703358193[/code]
This is 13*2^906-1.
I'm running msieve-GPU select from 1M to 4M this week, but won't have resources to run CADO on it. If anyone would like to have a go with either software, be my guest.
I'm looking forward to Wombatman's results from CADO on C165; if his results indicate near-parity with GGNFS, I'm going to sieve this with CADO starting at the end of the month.

[QUOTE=Max0526;488604]C183 would be great, if available. E.g., this number is waiting for its turn for a year and a half now: [URL]http://mersenneforum.org/showpost.php?p=448000&postcount=744[/URL]
Score to beat --> 6.160e-14[/QUOTE]

Two polys so far, but the skews are a bit high.

[CODE]# norm 6.908914e-18 alpha -7.764815 e 4.938841e-14 rroots 5
skew: 269206929.89
c0: 6632556915852516234692604733438428136972766888
c1: 43162236528033871760020829601104435978
c2: -5565095734821815005212734335709
c3: 12530744133248968229260
c4: 79578772315284
c5: 10800
Y0: -502719750046584123849609273399314925
Y1: 18914984234729261633

# norm 6.691523e-18 alpha -8.634426 e 4.860735e-14 rroots 5
skew: 783339412.25
c0: 1122908456935161155358924669448741974566733167385
c1: 4117410529077379288777399967072174548413
c2: -33628173024847416269953368013389
c3: -14298409235595597268249
c4: 61039345148380
c5: 10500
Y0: -505560135382532955322423329971927986
Y1: 41369977018556866823[/CODE]

C183 poly -- the first 5.0
 

[QUOTE=Gimarel;489123]Two polys so far, but the skews are a bit high.

[CODE]# norm 6.908914e-18 alpha -7.764815 e 4.938841e-14 rroots 5
skew: 269206929.89
c0: 6632556915852516234692604733438428136972766888
c1: 43162236528033871760020829601104435978
c2: -5565095734821815005212734335709
c3: 12530744133248968229260
c4: 79578772315284
c5: 10800
Y0: -502719750046584123849609273399314925
Y1: 18914984234729261633
[/CODE][/QUOTE]
With a spin-up of Gimarel's poly above we break into 5.0, but the skew is even higher:
[code]
Y0: -1005439500972990511359508044428814495
Y1: 18914984234729261633
c0: 132573915052212603019125426842868196938927223352
c1: 129989202524579294779591651958858385490
c2: -6182482006802746593447798795677
c3: 2593008753366385540670
c4: 19580719765071
c5: 1350
skew: 614992745.17
# size 5.739e-18, alpha -7.886, combined = 5.024e-14 rroots = 5
[/code]

C183
 

Here is my best so far after c5 = 1-100k. Hope they spin higher.

[code]
# norm 7.559600e-18 alpha -8.462072 e 5.265e-14 rroots 5
skew: 282367213.17
c0: 34989047031031687189451916166684496689194740525
c1: 710954957120131251764118865499347610631
c2: -6236523081917740364730970526807
c3: -56808547655015693804835
c4: 92959742198286
c5: 83160
Y0: -334216453514851738020496128327164712
Y1: 76956927657466433[/code]

Others above 5

[code]
# norm 7.221607e-18 alpha -8.530629 e 5.103e-14 rroots 5
skew: 424104599.97
c0: -389072753740714197822182727870313594798364385440
c1: 2574222471066064885179632984280800578996
c2: 13932715294767937501119369927698
c3: -38105690684436744899110
c4: -97646046790659
c5: 72540
Y0: -343475063434618853609441029043651247
Y1: 161980923248943073
[/code]


[code]
# norm 7.017768e-18 alpha -8.074359 e 5.010e-14 rroots 3
skew: 859689184.28
c0: -39777468185255447699112867226509383029056307833
c1: 528335079133888863229832012847783068643
c2: -9218725652557536640877328765393
c3: -20962700211840395319307
c4: 15931190106650
c5: 2040
Y0: -701592098255245785225893548010949580
Y1: 16640493026060167[/code]


[code]
# norm 7.172387e-18 alpha -7.952102 e 5.061e-14 rroots 5
skew: 730723014.53
c0: 102002453232810489412711158797010777087485171712
c1: 857070956652835459570821903956902017888
c2: -7982977939512653283843501936858
c3: -22172264734927712340307
c4: 15736392189650
c5: 2040
Y0: -701592098255563582616023895780388025
Y1: 16640493026060167[/code]

For VBCurtis 's C180
[code]

R0: -31778998390191119194235808801158838
R1: 54320397473186171
A0: -7519308113865501978470472719660448571989605
A1: -380393579036795928317959791418164212
A2: 106439260611156704057626079484
A3: 6162094743665416248560
A4: -184428223858807
A5: 4008900
skew 20650970.59, size 1.160e-017, alpha -6.910, combined = 7.759e-014 rroots = 1
[/code]found with msieve, feel free to try to spin it up, down or sideway
nps poly
[code]
4008900 -270211768506307 10053499376716060159900 3914701885369689999720104588 -62052915766108868877246691602784414 -7168496447306317175119944583479381623880 54320397473186171 -31778998390423591754883917363809843 -1.68 2.545719e+023
[/code]

C183
 

Another poly above 5.1e-14

[CODE]# norm 7.366762e-18 alpha -7.296012 e 5.149920e-14 rroots 5
skew: 132651733.63
c0: -3092988168201734446733878524698022633016504695
c1: 9135658970024867002151900626576362255
c2: 1257571245709890560088105260705
c3: -2582537219678764971919
c4: -101767951487614
c5: 11220
Y0: -498898484342191783933605530653543852
Y1: 21105916605640857017
[/CODE]

C183 -- the first 5.3 !
 

[QUOTE=swellman;489163]Here is my best so far after c5 = 1-100k. Hope they spin higher.

[code]
# norm 7.559600e-18 alpha -8.462072 e 5.265e-14 rroots 5
skew: 282367213.17
c0: 34989047031031687189451916166684496689194740525
c1: 710954957120131251764118865499347610631
c2: -6236523081917740364730970526807
c3: -56808547655015693804835
c4: 92959742198286
c5: 83160
Y0: -334216453514851738020496128327164712
Y1: 76956927657466433[/code][/QUOTE]
Spin-up of swellman's poly above. The skew value is probably too high.
[code]
Y0: -1002649360519102189603483740625155293
Y1: 76956927657466433
c0: 942830031572750316250042704526876514069688115200
c1: 5824852513450937570450060280227442213600
c2: -17131902285615960343303206679268
c3: -1902101387102448184809
c4: 15422314317654
c5: 3080
skew: 1123510363.66
# size 6.221e-18, alpha -8.701, combined = 5.317e-14 rroots = 3
[/code]

a flare for VBCurtis C180
[code]
Y0: -29780856689015609089451098649853782
Y1: 23891001328872731
C0: 193791950281312984540052289199607969422881675
C1: 14232538675943609155843750176720045030
C2: -778017430465696207244811027205
C3: -20185081920019007088802
C4: 573556028081370
C5: 5546772
skew: 39862786.60
# size 1.301e-017, alpha -7.825, combined = 8.178e-014 rroots = 5
[/code]
and a secondone
[code]
# norm 1.474113e-017 alpha -7.296663 e 7.925e-014 rroots 5
skew: 26365177.31
c0: -15559805649229234423272667973289805355969488
c1: 3884640355971210742320987085223493468
c2: 427018960350060785764432408268
c3: -12472070216321070996912
c4: -640299538421269
c5: 7304220
Y0: -28185807436219266792623387255100669
Y1: 17089474339983679
[/code]

I finished my stage 1 run on the C180. Root-opt was very rewarding:
[code]# norm 2.037422e-17 alpha -6.264460 e 9.891e-14 rroots 3
skew: 15024668.81
c0: -533028394536807188362131788182775593442640
c1: -138383595038692877066860530671423832
c2: 1740952959269218528051615991
c3: 536442581416971672286
c4: -43386630409392
c5: 1983600
Y0: -36580903662792751250498489403301771
Y1: 156719838869685233[/code]
Thanks for the added cycles, everyone!
I won't be sieving this for a few weeks, as the C179 13*2^914-1 is only about 2/3rds complete. I expect to start this C180 around 1 July.

You want me to try a bit more VBCurtis?

[QUOTE=VBCurtis;489479]I finished my stage 1 run on the C180. Root-opt was very rewarding:
[code]# norm 2.037422e-17 alpha -6.264460 e 9.891e-14 rroots 3
[/code][/QUOTE]
Looks totally spinnable into a new record! Will do my best during the weekend.