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Table of n, a(n) for n=1..35.
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. A032374, 49*2^n+1 is prime.
Sequence in context: A048974 A089193 A111083 * A079523 A231271 A039504
Adjacent sequences: A050547 A050548 A050549 * A050551 A050552 A050553
N. J. A. Sloane, Dec 29 1999
More terms from Hugo Pfoertner, Oct 13 2004
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008