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1,1
Table of n, a(n) for n=1..17.
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: A058203 A219390 A050585 * A060669 A166644 A264492
Adjacent sequences: A050552 A050553 A050554 * A050556 A050557 A050558
hard,nonn
N. J. A. Sloane, Dec 29 1999
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008
approved