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A025760 7th order Vatalan numbers (generalization of Catalan numbers). +0
1
1, 1, 22, 680, 24074, 917414, 36618492, 1508943612, 63643109727, 2732349490669, 118957846271104, 5237911268468572, 232794783971436296, 10427673857731312064, 470213556090357498728, 21325335129901497816528 (list; graph; listen)
OFFSET

0,3

FORMULA

G.f.: ${7\over {6+\root 7 \of {1-49x}}}$

CROSSREFS

Adjacent sequences: A025757 A025758 A025759 this_sequence A025761 A025762 A025763

Sequence in context: A084271 A092086 A137262 this_sequence A027409 A067768 A095696

KEYWORD

nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.


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