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A119573
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Primes that have one of the forms 2^(2^n) + 1, 2^(2^n - 1) + 2^(2^(n + 1) - 1) + 1 or (2^(2^n) + 1 + 2^(2^(n + 1) - 1) + 1)/2.
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0
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OFFSET
| 1,1
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MATHEMATICA
| a = Union[Flatten[Table[{2^(2^n) + 1, 2^(2^n - 1) + 2^(2^(n + 1) - 1) + 1, (2^(2^n) + 1 + 2^(2^(n + 1) - 1) + 1)/2}, {n, 0, 10}]]] aout = Flatten[Table[If[PrimeQ[a[[n]]], a[[n]], {}], {n, 1, Length[a]}]]
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CROSSREFS
| Cf. A019434.
Sequence in context: A037155 A038944 A124081 * A001366 A093329 A111052
Adjacent sequences: A119570 A119571 A119572 * A119574 A119575 A119576
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KEYWORD
| nonn
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 31 2006
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EXTENSIONS
| Edited by N. J. A. Sloane (njas(AT)research.att.com), Jun 03 2006
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