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A154935
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Numbers n such that n^7-2 is prime.
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6
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7, 15, 25, 87, 91, 99, 199, 211, 265, 337, 357, 361, 367, 405, 501, 511, 537, 595, 627, 685, 697, 771, 805, 841, 847, 861, 889, 931, 939, 979, 1035, 1047, 1081, 1125, 1135, 1177, 1225, 1231, 1287, 1315, 1321, 1387, 1425, 1497, 1501, 1627, 1741, 1795, 1807
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OFFSET
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1,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 1..1000
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MATHEMATICA
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lst={}; Do[p=n^7-2; If[PrimeQ[p], AppendTo[lst, n]], {n, 0, 7!}]; lst
Select[Range[2*10^3], PrimeQ[#^7 - 2] &] (* Vincenzo Librandi, Mar 20 2014 *)
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PROG
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(MAGMA) [n: n in [1..500]|IsPrime(n^7-2)]; // Vincenzo Librandi, Nov 26 2010
(PARI) is(n)=isprime(n^7-2) \\ Charles R Greathouse IV, Feb 17 2017
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CROSSREFS
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Cf. A028870, A038599, A154831, A154832, A154833, A154834, A154933, A154934.
Sequence in context: A298577 A299569 A260558 * A012480 A226470 A063611
Adjacent sequences: A154932 A154933 A154934 * A154936 A154937 A154938
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KEYWORD
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nonn,easy
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, Jan 17 2009
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STATUS
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approved
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