1,1

Ray Ballinger, Proth Search Page

Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300

Y. Gallot, Proth.exe: Windows Program for Finding Large Primes

Wilfrid Keller, List of primes k.2^n - 1 for k < 300

Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime

Cf. A002257.

Sequence in context: A038638 A082396 A071388 this_sequence A114272 A108468 A165593

Adjacent sequences: A032353 A032354 A032355 this_sequence A032357 A032358 A032359

nonn,hard

Jim Buddenhagen (jbuddenh(AT)gmail.com)