C161 poly
 

@RichD
So far:
[code]
Y0: -11569763219053365366535042605762
Y1: 1457789863829927
c0: -238846676512415702032268812969137885923
c1: 75115810007404283309228606484783
c2: 125998315095264248023677777
c3: -4365823029168677635
c4: -4440836396874
c5: 87984
skew: 5610232.90862
# lognorm 49.66, E 43.52, alpha -6.14 (proj -1.85), 5 real roots
# MurphyE = 1.17245240e-12
[/code][code]
Y0: -11569763219770079006347843235750
Y1: 1457789863829927
c0: -238413873018200001651522756315307008183
c1: 42752093143605621550976689567047
c2: 125892580247216985880378037
c3: 4580088738646248029
c4: -4657120425354
c5: 87984
skew: 5511783.20250
# lognorm 49.75, E 43.63, alpha -6.11 (proj -1.85), 5 real roots
# MurphyE = 1.16954361e-12
[/code][code]
Y0: -11569763219395112128732964732518
Y1: 1457789863829927
c0: -13956487547159143252729336672566813591
c1: 15551132926251983744332527713127
c2: 127593076690005870143114541
c3: -153244534099194787
c4: -4543965962634
c5: 87984
skew: 4922215.84790
# lognorm 49.75, E 43.72, alpha -6.03 (proj -1.85), 5 real roots
# MurphyE = 1.16897094e-12
[/code]

C161 poly
 

@RichD
I can get you one with the E > 1.238e-12 in 48 h. I'll start a CADO run from scratch overnight.

[QUOTE=Max0526;468953]@RichD
I can get you one with the E > 1.238e-12 in 48 h. I'll start a CADO run from scratch overnight.[/QUOTE]

Great! I may wait on that before doing any test sieving. Thank you.

C161 poly
 

@RichD
CADO's pick after a standard run. Enjoy! Happy test-sieving! (it should be redundant if I did everything right)
[code]
skew: 803784.99907
c0: 155074518410536844809864146698326734
c1: 6008882427449300873846447494763
c2: -3461573052906592178453922
c3: -48603514886258014607
c4: 6980232164304
c5: 10730160
Y0: -7276128459090902162042467848234
Y1: 2564346477764254000369
# MurphyE = 1.34127464e-12
[/code]

C161 -- 4 more polys
 

@RichD
[code]
Y0: -14666308509189885826827309680864
Y1: 14366421400243603543
c0: -945600064622896983325270987255307323791
c1: 814924045743475964418610781446441
c2: -6924772852867944858176370
c3: -29689647459970073293
c4: -1382025466707
c5: 80640
skew: 9047153.55828
# lognorm 50.21, E 43.16, alpha -7.04 (proj -1.91), 3 real roots
# MurphyE = 1.30451493e-12
[/code][code]
Y0: -13937843400604410542946244759611
Y1: 313390996726672401239
c0: -381675828186169124255846117946454368480
c1: 2371909260583519175557816411813204
c2: 39299843186916850157004264
c3: -58080752133083914273
c4: -328301327070
c5: 104040
skew: 11621349.00763
# lognorm 50.62, E 43.12, alpha -7.49 (proj -2.18), 5 real roots
# MurphyE = 1.30311355e-12
[/code][code]
Y0: -8318214831409983746632697352471
Y1: 11110067070750708884527
c0: -14430065045350437250753421875886304
c1: 605582962475771214641480625494
c2: 9599342122675989854846571
c3: -15319541513597482256
c4: -45458558125560
c5: 6930900
skew: 455799.95839
# lognorm 48.45, E 42.45, alpha -6.00 (proj -1.84), 5 real roots
# MurphyE = 1.28591886e-12
[/code][code]
Y0: -9932241024668198854556787909999
Y1: 2212231659858773982353
c0: 46527500613181702120602547259155599472
c1: -206517747133200578519699700237486
c2: -68078385228878793247423385
c3: 49199986952116698813
c4: 10484884435216
c5: -1512000
skew: 3118361.19485
# lognorm 50.24, E 43.30, alpha -6.94 (proj -1.87), 5 real roots
# MurphyE = 1.23465519e-12
[/code]

C161 poly
 

Surprisingly, the first of the set of four is significantly better as testing continues into today.

AS 3408 i1671 ready for GNFS
 

[code]206126198520335998469134386020008749480733049152712107835914145741704733292914301600869914866579422918568099165679123078042285531615037983736118335674577501855025337380741475484791[/code]

This C180 has survived ECM at all levels up through 10k curves @B1=260M. Seems ready for GNFS. Anyone available for a poly search?

For reference, [url=http://www.mersenneforum.org/showpost.php?p=457286&postcount=59]the table of best Murphy e-scores[/url], and a [url=http://www.mersenneforum.org/showpost.php?p=466601&postcount=66]C181 poly had an e-score of 7.874e-14[/url]. Of course these are notional targets, nothing else. Thank you in advance.

Sure, I'll take a crack at it. Lots of searchers like to start from small c5, so I'll go from 6M up for a few days (to, say, 15M). My GPU settings are such that overlapping ranges isn't a great idea, so please consider this a reservation.

C180 poly
 

[QUOTE=swellman;469431][code]206126198520335998469134386020008749480733049152712107835914145741704733292914301600869914866579422918568099165679123078042285531615037983736118335674577501855025337380741475484791[/code]This C180 has survived ECM at all levels up through 10k curves @B1=260M. Seems ready for GNFS. Anyone available for a poly search?

For reference, [URL="http://www.mersenneforum.org/showpost.php?p=457286&postcount=59"]the table of best Murphy e-scores[/URL], and a [URL="http://www.mersenneforum.org/showpost.php?p=466601&postcount=66"]C181 poly had an e-score of 7.874e-14[/URL]. Of course these are notional targets, nothing else. Thank you in advance.[/QUOTE]

This poly found by CADO should be good enough base line:
[code]
Y0: -49738139637893617315817799300088981
Y1: 27672595519131845458109
c0: -2652404664868591701516262308723676792640400
c1: 870594114724145601189603720728638060
c2: 201709401768253910775635028132
c3: -9655593149217016178935
c4: -340677140793738
c5: 14220360
skew: 18679281.06318
# lognorm 56.64, E 49.12, alpha -7.52 (proj -2.70), 5 real roots
# MurphyE = 8.57977272e-14
[/code]

Thank you Max! Nice poly.

@VBCurtis - any luck in the search?

I just quit the GPU search after 5.5 days. I only managed from 6M to 7.9M. Three decent polys:
[code]R0: -31119843651367294436029714896791255
Wed Oct 11 18:10:28 2017 R1: 247990605448285733
Wed Oct 11 18:10:28 2017 A0: -593740999910703281067772356663872761402368
Wed Oct 11 18:10:28 2017 A1: 159777675517714870112951141948161728
Wed Oct 11 18:10:28 2017 A2: 70511396081170507634342213912
Wed Oct 11 18:10:28 2017 A3: -24478283837811812553902
Wed Oct 11 18:10:28 2017 A4: -296866788626935
Wed Oct 11 18:10:28 2017 A5: 7062300
Wed Oct 11 18:10:28 2017 skew 15383841.99, size 1.311e-17, alpha -7.168, combined = 8.246e-14 rroots = 3[/code]
[code]R0: -30948520272182371619235942492116575
Thu Oct 12 18:38:32 2017 R1: 539766211281434653
Thu Oct 12 18:38:32 2017 A0: -23371400763752593515733493675838507174332688
Thu Oct 12 18:38:32 2017 A1: 13344577654793111119112780823901817628
Thu Oct 12 18:38:32 2017 A2: 1434809453019136527632867997055
Thu Oct 12 18:38:32 2017 A3: -13172545058494682260060
Thu Oct 12 18:38:32 2017 A4: -1032494019650612
Thu Oct 12 18:38:32 2017 A5: 7259952
Thu Oct 12 18:38:32 2017 skew 35823605.44, size 1.344e-17, alpha -8.356, combined = 8.400e-14 rroots = 5[/code]
[code]# norm 1.622922e-17 alpha -8.286054 e 8.293e-14 rroots 5
skew: 39444192.53
c0: -285489461764396241127517652590102155780421500
c1: 14415835771414509761198948163178693920
c2: 1419108613406777549566103044423
c3: -14712405394373998070588
c4: -1018869775928852
c5: 7259952
Y0: -30948520271979783326220526749544697
Y1: 539766211281434653[/code]