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Search: id:A131683
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A131683 a(n) = 4*(n^1 + 1!)*(n^2 + 2!)*(n^3 + 3!)*(n^4 + 4!)/4!. +0
2
48, 175, 1680, 25410, 294000, 2295513, 12991440, 57550100, 211281840, 669529875, 1885734928, 4823347830, 11387316720, 25126129245, 52326450000, 103659864168, 196585724720, 358766207415, 632810010000, 1082730294250, 1802581066608, 2927824829985 (list; graph; listen)
OFFSET

0,1

CROSSREFS

See A049614.

Sequence in context: A039496 A044380 A044761 this_sequence A066134 A005911 A130566

Adjacent sequences: A131680 A131681 A131682 this_sequence A131684 A131685 A131686

KEYWORD

nonn

AUTHOR

Alexander Povolotsky (pevnev(AT)juno.com), Aug 29 2007

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Last modified December 3 01:16 EST 2008. Contains 151161 sequences.


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