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Search: id:A137781
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A137781 a(n) = (2^(prime(n)) + 2^(prime(n + 1))) / 2^(prime(1)). +0
1
3, 10, 40, 544, 2560, 34816, 163840, 2228224, 136314880, 671088640, 34896609280, 584115552256, 2748779069440, 37383395344384, 2286984185774080, 146366987889541120, 720575940379279360, 37469948899722526720 (list; graph; listen)
OFFSET

1,1

PROGRAM

(PARI)

CROSSREFS

Cf. A137389.

Sequence in context: A030891 A030911 A009374 this_sequence A163843 A149056 A149057

Adjacent sequences: A137778 A137779 A137780 this_sequence A137782 A137783 A137784

KEYWORD

nonn

AUTHOR

Alexander R. Povolotsky (pevnev(AT)juno.com), Apr 28 2008

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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