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Search: id:A093765
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| A093765 |
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Numbers n such that 6^n+5^(n-1) is prime. |
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+0
9
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| 1, 2, 3, 8, 9, 15, 26, 30, 69, 212, 318, 909, 1224, 1946, 2192, 2234, 2978, 3344
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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15 is a member since 615+515 = 476288500201 which is a prime number.
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MATHEMATICA
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Do[ If[ PrimeQ[6^n + 5^(n - 1)], Print[n]], {n, 4000]
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CROSSREFS
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Cf. A093713, A082103, A093717, A093793, A096185, A093794, A093795, A096186.
Sequence in context: A101471 A137471 A051209 this_sequence A104577 A103026 A098506
Adjacent sequences: A093762 A093763 A093764 this_sequence A093766 A093767 A093768
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KEYWORD
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nonn
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AUTHOR
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Herman H. Rosenfeld (herm3(AT)pacbell.net), May 17 2004
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 18 2004
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