1,1

H. Riesel, ``Prime numbers and computer methods for factorization,'' Progress in Mathematics, Vol. 57, Birkhauser, Boston, 1985, Chap. 4, see pp. 381-384.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

H. C. Williams and C. R. Zarnke, Math. Comp., 22 (1968), 420-422.

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

Cf. A032356, 13*2^n+1 is prime.

Sequence in context: A121883 A060235 A090188 this_sequence A067604 A090118 A099183

Adjacent sequences: A001770 A001771 A001772 this_sequence A001774 A001775 A001776

hard,nonn

N. J. A. Sloane (njas(AT)research.att.com).

More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 23 2004