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A131092 Coefficient of y^(n-2) in expansion of (y+n!)^n. 0
4, 108, 3456, 144000, 7776000, 533433600, 45519667200, 4740548198400, 592568524800000, 87634300723200000, 15143207164968960000, 3024511467403345920000 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

MATHEMATICA

a = {}; Do[k = CoefficientList[Expand[(y + n!)^n], y]; AppendTo[a, k[[Length[k] - 2]]], {n, 1, 50}]; a

CROSSREFS

Cf. A001563.

Sequence in context: A087178 A104595 A128865 * A123056 A024263 A090205

Adjacent sequences:  A131089 A131090 A131091 * A131093 A131094 A131095

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Oct 22 2007

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Last modified February 14 01:35 EST 2012. Contains 205567 sequences.