id:A131092 - OEIS Search Results

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Coefficient of y^(n-2) in expansion of (y+n!)^n.

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4, 108, 3456, 144000, 7776000, 533433600, 45519667200, 4740548198400, 592568524800000, 87634300723200000, 15143207164968960000, 3024511467403345920000 (list; graph; listen)

	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 this_sequence A123056 A024263 A090205` `Adjacent sequences: A131089 A131090 A131091 this_sequence A131093 A131094 A131095`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 22 2007`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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