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Table of n, a(n) for n=1..16.
Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime
For more terms see A002256.
Sequence in context: A061237 A158293 A107579 * A053685 A136063 A111441
Adjacent sequences: A050525 A050526 A050527 * A050529 A050530 A050531
N. J. A. Sloane, Dec 29 1999