Reserving R338 to n=100K.

taking S331 to 10k

note : I worked on it a few day prior.
1106k at the begining, 499 k found, 607 left

S316 at 10k and climbing. 457 k values remain.

[QUOTE=Batalov;338696]S256 is finished to 500K and released (results will be emailed). No prime.[/QUOTE]

Have you Emailed the results yet? I haven't received them. Thanks.

Indeed I haven't yet. I will. I have to find time to walk with a USB stick to a certain networkless machine that holds some of the earlier results.

Unrelatedly, for a doublecheck, I've now run k=831 to 2.25M for all n values (not restricted to n%8==0 which is S256) and found one prime. So it's not very dry (it is the 33rd p for it, for all available classes n modulo 8: 1,3,4,5 but not for 0; class 0 has approximately the same density as class 4; class 4 has 6 primes; classes 1,3,5 are twice denser and have 6..11 primes each). A fairly unlucky Bernoulli trial outcome (that is for S256).

S472
 

S472 tested n=100K-200K - nothing found

taking S445 to 25k

R418
 

Riesel Base = 418
Conjectured k = 11733
Covering Set = 5, 29, 419
Trivial Factors = k == 1 mod 3(3) and k == 1 mod 39(39)

Found Primes: 7677k's

Remaining: 79k's - Tested to n=25K

Trivial Factor Eliminations: 3966k's

MOB Eliminations: 9k's

Base Released

status r253
 

r253 at n = 320e3
continuing...

S445 done to 25k, 77 k found, 61 left