1,1

Ray Ballinger, Proth Search Page

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

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

Sequence in context: A014357 A018991 A018948 this_sequence A161603 A075033 A017533

Adjacent sequences: A032475 A032476 A032477 this_sequence A032479 A032480 A032481

nonn,hard

N. J. A. Sloane (njas(AT)research.att.com).