A033542 - OEIS

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A033542

a(n) = 2*(n^2)!* Product_{k = 0 .. n-1 } k!/(n+k)!.

0, 2, 8, 504, 1153152, 168275764800, 2407165968578342400, 4788742737385049982623884800, 1780642079411485280163076498360356864000 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A035129 A003301 A000890 * A098870 A023365 A013554` `Adjacent sequences: A033539 A033540 A033541 * A033543 A033544 A033545`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 13 2002`

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.