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Search: id:A081865
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A081865 a(n)=sigma_7(2n-1). +0
1
1, 2188, 78126, 823544, 4785157, 19487172, 62748518, 170939688, 410338674, 893871740, 1801914272, 3404825448, 6103593751, 10465138360, 17249876310, 27512614112, 42637932336, 64340198544, 94931877134, 137293757384 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Cf. A013955.

Sequence in context: A017431 A079231 A017563 this_sequence A085442 A134158 A109408

Adjacent sequences: A081862 A081863 A081864 this_sequence A081866 A081867 A081868

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 12 2003

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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