id:A152653 - OEIS Search Results

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a(n)=(n-1)!*product((n-k)!,k=1..n-2).

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1, 1, 4, 72, 6912, 4147200, 17915904000, 632073093120000, 203881496916787200000, 665860658410473652224000000, 24162751572399267891904512000000000 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`Sequence in context: A076744 A158269 A024257 this_sequence A087315 A081460 A055556` `Adjacent sequences: A152650 A152651 A152652 this_sequence A152654 A152655 A152656`
	KEYWORD	`nonn`
	AUTHOR	`Karol A. Penson (penson(AT)lptl.jussieu.fr), Dec 10 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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