1,1

Ray Ballinger, Proth Search Page

Ray Ballinger & 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. A032373, A032419, A032460.

Sequence in context: A153642 A119843 A066216 this_sequence A024973 A024975 A025399

Adjacent sequences: A032494 A032495 A032496 this_sequence A032498 A032499 A032500

nonn,hard

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

One more term (from the Ballinger-Keller web page) from M. F. Hasler (Maximilian.Hasler(AT)gmail.com), Apr 18 2007