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Table of n, a(n) for n=1..57.
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.
Sequence in context: A227963 A099678 A192119 * A168156 A103022 A086189
Adjacent sequences: A050560 A050561 A050562 * A050564 A050565 A050566
N. J. A. Sloane, Dec 29 1999
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008