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Search: id:A095906
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| A095906 |
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Numbers n such that 3^n-2^(n-1) is prime. |
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+0
3
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| 1, 2, 3, 4, 5, 9, 10, 11, 12, 16, 29, 34, 41, 61, 73, 186, 191, 241, 282, 1075, 1404, 1991, 2116, 3399, 3935, 4924, 5353, 7660, 8645
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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Do[ If[ PrimeQ[3^n - 2^(n - 1)], Print[n]], {n, 3000}]
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CROSSREFS
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Cf. A093452.
Sequence in context: A047603 A047362 A032969 this_sequence A118732 A118872 A046029
Adjacent sequences: A095903 A095904 A095905 this_sequence A095907 A095908 A095909
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KEYWORD
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nonn,more
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AUTHOR
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Herman H. Rosenfeld (herm3(AT)pacbell.net) and Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 17 2004
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EXTENSIONS
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More terms from Ray G. Opao (1260(AT)email.com), Jul 22 2004
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