id:A066302 - OEIS Search Results

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Reduced partially ordered sets (posets) with n labeled elements.

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1, 1, 1, 7, 75, 1531, 50673, 2613703, 202180723, 22853355895, 3701983130913, 846741042881779, 270316009546766571, 119343586350194910211, 72325998629777739416209, 59798727157327673157936319 (list; graph; listen)

	OFFSET	`0,4`
	REFERENCES	`F. Bergeron, G. Labelle and P. Leroux, Combinatorial Species and Tree-Like Structures, Cambridge, 1998, pg 57 (1.4.70).`
	LINKS	`Index entries for sequences related to posets`
	FORMULA	`E.g.f. A(x)=B(x/(1+x)) where B(x) is e.g.f. of A001035.` `E.g.f. A(x)=exp(B(x)) where B(x) is e.g.f. of A066303.`
	CROSSREFS	`Adjacent sequences: A066299 A066300 A066301 this_sequence A066303 A066304 A066305` `Sequence in context: A106162 A127190 A121316 this_sequence A139472 A114470 A098497`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Dec 12 2001`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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