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A074781 Primes of the form 1+p*2^k for any k and any prime p. 3
3, 5, 7, 11, 13, 17, 23, 29, 41, 47, 53, 59, 83, 89, 97, 107, 113, 137, 149, 167, 173, 179, 193, 227, 233, 257, 263, 269, 293, 317, 347, 353, 359, 383, 389, 449, 467, 479, 503, 509, 557, 563, 569, 587, 593, 641, 653, 719, 769, 773, 797, 809, 839, 857, 863, 887 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

T. D. Noe, Table of n, a(n) for n=1..2000

Cohen, Graeme L. On a conjecture of Makowski and Schinzel (page 1), Colloq. Math. 74 (1997), no. 1, 1-8.

CROSSREFS

Cf. A058500 (this sequence without the Fermat primes), A147545

Sequence in context: A074832 A075794 A135832 * A147545 A083668 A176116

Adjacent sequences:  A074778 A074779 A074780 * A074782 A074783 A074784

KEYWORD

nonn

AUTHOR

Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Sep 07 2002

STATUS

approved

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Last modified May 19 02:47 EDT 2013. Contains 225428 sequences.