id:A003425 - OEIS Search Results

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n! times number of posets with n elements.
(Formerly M4294)

+0
1

1, 1, 6, 114, 5256, 507720, 93616560, 30894489360, 17407086641280, 16152167106391680, 23990233574783750400, 55735096448700749203200 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`K. K.-H. Butler, A Moore-Penrose inverse for Boolean relation matrices, pp. 18-28 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974.`
	LINKS	`Index entries for sequences related to posets`
	CROSSREFS	`Cf. A001035.` `Sequence in context: A051228 A059116 A121544 this_sequence A052465 A113015 A024275` `Adjacent sequences: A003422 A003423 A003424 this_sequence A003426 A003427 A003428`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research