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Search: id:A006485
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| A006485 |
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(2^(2^n + 1) + 1)/3.
(Formerly M2912)
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+0
1
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| 3, 11, 171, 43691, 2863311531, 12297829382473034411, 226854911280625642308916404954512140971
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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MATHEMATICA
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lst={}; Do[AppendTo[lst, (2^(2^n+1)+1)/3], {n, 9}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 19 2008]
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CROSSREFS
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Sequence in context: A080987 A132561 A140538 this_sequence A003115 A053888 A118479
Adjacent sequences: A006482 A006483 A006484 this_sequence A006486 A006487 A006488
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KEYWORD
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nonn
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AUTHOR
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Dennis S. Kluk (mathemagician(AT)ameritech.net)
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