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Search: id:A007643
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| A007643 |
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Primes not of form | 3^x - 2^y |. (Formerly M5274)
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+0 2
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| 41, 43, 53, 59, 67, 71, 83, 89, 97, 103, 107, 109, 113, 131, 137, 149, 151, 157, 163, 167, 173, 181, 191, 193, 197, 199, 223, 233, 251, 257, 263, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389
(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. A007644.
Sequence in context: A045710 A090152 A139774 this_sequence A157194 A161614 A106098
Adjacent sequences: A007640 A007641 A007642 this_sequence A007644 A007645 A007646
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KEYWORD
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nonn
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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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