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Search: id:A007644
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| A007644 |
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Primes not of form | 3^x +- 2^y |.
(Formerly M5307)
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+0
3
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| 53, 71, 103, 107, 109, 149, 151, 157, 163, 167, 173, 181, 191, 193, 197, 199, 223, 233, 263, 271, 277, 281, 293, 311, 313, 317, 331, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Problem 1404, Math. Mag., 65 (1992), 265.
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CROSSREFS
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Cf. A007643.
Sequence in context: A034965 A160029 A045807 this_sequence A136073 A133187 A057667
Adjacent sequences: A007641 A007642 A007643 this_sequence A007645 A007646 A007647
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein, Robert G. Wilson v (rgwv(AT)rgwv.com)
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