[QUOTE=lalera;433377]hi,
i would like to get a list of valid bases for b=100 - 200
i want to do them to n=10000 - maybe higher[/QUOTE]

100 (10^2) also should be skipped.

Base 12 completed to 50k. No new primes found (other than the one reported in the Prime thread). Unreserving.


Base 18 completed to 40k. No new primes. Unresereving. Here is a sieve file from 40k-100k. Sieved not too deep (3e11).

I'd quickly searched them just now. A list generated with GP was
[CODE]? forstep(b=2,2000,2,if(ispower(b)>1,next);q=0;for(n=1,400,if(ispseudoprime((b^n-1)^2-2),q=1;break);if(ispseudoprime((b^n+1)^2-2),q=1;break));if(!q,print1(" "b)))
368 640 688 926 970 982 1038 1270 1318 1388 1432 1452 1466 1468 1484 1614 1656 1852 1950 1992[/CODE]
and then I sieved the smaller ones (up to 1432) to n<=10000 and started pfgw. After a few minutes only b=640, 688, 1388 survived.

I guess, I will reserve b=640, 688 to n <= 30000 for starters, now.

hi,
please do reserve for me
base 28, n=1000 to 30000

Completed to n=600,000. No new primes and continuing.

hi,
please do reserve for me
b=60, n=1000 to 30000
b=62, n=1000 to 30000

hi,
dereserveing base 6

Complete to 625,000 and continuing. (2^621443+1)^2-2 is the only new prime and was reported in the other thread.

hi,
status update for carol / kynea
b=74, n=69000 to 78000
no prime
continuing

Completed to n=650,000. No new primes and continuing.

hi,
dereserveing base 74