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Search: id:A104066
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A104066 Primes of the form 2^n+7. +0
1
11, 23, 71, 263, 1031, 65543, 262151, 1048583, 268435463, 1073741831, 274877906951, 17592186044423, 302231454903657293676551, 309485009821345068724781063, 316912650057057350374175801351 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

a = Delete[Union[Flatten[Table[If [PrimeQ[2^n + 7] == True, 2^ n + 7, 0], {n, 1, 400}]]], 1]

CROSSREFS

Sequence in context: A068844 A139905 A102273 this_sequence A060160 A050767 A077707

Adjacent sequences: A104063 A104064 A104065 this_sequence A104067 A104068 A104069

KEYWORD

nonn

AUTHOR

Roger Lee Bagula (rlbagulatftn(AT)yahoo.com), Mar 02 2005

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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