id:A093853 - OEIS Search Results

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Number of 3-uniform T_0-hypergraphs without multiple edges on n vertices.

+0
1

1, 1, 0, 0, 5, 918, 1045305, 34359063140, 72057592159917465, 19342813113675737866540892, 1329227995784915042800342940013202739 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`E.g.f.:(1+x)exp(-x+x^2/2+x^3/3)Sum(2^binomial(n, 3)exp(-2^(n-1)x^2)*x^n/n!, n=0..infinity).`
	CROSSREFS	`Cf. A094630, A094631.` `Sequence in context: A135084 A094630 A015940 this_sequence A157332 A024072 A119549` `Adjacent sequences: A093850 A093851 A093852 this_sequence A093854 A093855 A093856`
	KEYWORD	`nonn`
	AUTHOR	`Goran Kilibarda, Vladeta Jovovic (vladeta(AT)eunet.rs), May 21 2004`

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

AT&T Labs Research