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Search: id:A104066
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| A104066 |
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Primes of the form 2^n+7. |
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+0
7
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| 11, 23, 71, 263, 1031, 65543, 262151, 1048583, 268435463, 1073741831, 274877906951, 17592186044423, 302231454903657293676551, 309485009821345068724781063, 316912650057057350374175801351
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OFFSET
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1,1
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MATHEMATICA
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a = Delete[Union[Flatten[Table[If [PrimeQ[2^n + 7] == True, 2^ n + 7, 0], {n, 1, 400}]]], 1]
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CROSSREFS
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Cf. A057195 (numbers n such that 2^n+7 is prime). [From Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Mar 14 2009]
Sequence in context: A068844 A139905 A102273 this_sequence A060160 A158021 A050767
Adjacent sequences: A104063 A104064 A104065 this_sequence A104067 A104068 A104069
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KEYWORD
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nonn
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AUTHOR
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Roger Lee Bagula (rlbagulatftn(AT)yahoo.com), Mar 02 2005
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