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1,2
Table of n, a(n) for n=1..48.
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: A212011 A207005 A050070 * A066906 A125884 A001602
Adjacent sequences: A050587 A050588 A050589 * A050591 A050592 A050593
hard,nonn
N. J. A. Sloane, Dec 29 1999
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008
approved