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Search: id:A091514
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| A091514 |
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Kynea primes: primes of the form (2^n+1)^2-2 = 4^n+2^(n+1)-1. |
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+0
6
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| 7, 23, 79, 1087, 66047, 263167, 16785407, 1073807359, 17180131327, 68720001023, 4398050705407, 70368760954879, 18014398777917439, 18446744082299486207, 5070602400912922109586440191999
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Kynea Number
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MATHEMATICA
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lst={}; Do[If[PrimeQ[p=4^n+2^(n+1)-1], (*Print[p]; *)AppendTo[lst, p]], {n, 10^2}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 21 2008]
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CROSSREFS
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Cf. A091513.
Sequence in context: A145842 A086908 A093069 this_sequence A003540 A063793 A096327
Adjacent sequences: A091511 A091512 A091513 this_sequence A091515 A091516 A091517
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KEYWORD
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nonn
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Jan 17, 2004
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EXTENSIONS
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Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 15, 2004
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