1,1
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
Kosmaj, Riesel list k<300.
Cf. A032364 = 29*2^n+1 is prime.
Sequence in context: A109957 A101205 A204772 * A094559 A199214 A200725
Adjacent sequences: A050537 A050538 A050539 * A050541 A050542 A050543
hard,nonn
N. J. A. Sloane (njas(AT)research.att.com), Dec 29 1999
One more term from Hugo Pfoertner (hugo(AT)pfoertner.org), Aug 29 2004
1478344 from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008
