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Search: id:A107721
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A107721 Column 1 of triangle A107719. +0
4
1, 2, 13, 131, 1741, 28451, 549757, 12247211, 308953453, 8706012827, 271093643293, 9245857326635, 342832527086797, 13733511532751099, 591127774090746493, 27209560375187822795, 1333804962202136755501 (list; graph; listen)
OFFSET

0,2
PROGRAM

(PARI)

CROSSREFS

Cf. A107717, A107719.

Sequence in context: A108471 A036078 A057065 this_sequence A085882 A041509 A079165

Adjacent sequences: A107718 A107719 A107720 this_sequence A107722 A107723 A107724

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), May 30 2005

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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