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: A089251 A147568 A006794 this_sequence A122564 A162876 A162875

Adjacent sequences: A032454 A032455 A032456 this_sequence A032458 A032459 A032460

nonn,hard

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