A093853 - OEIS

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A093853

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

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

	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: A094630 A173914 A015940 * A195627 A157332 A024072` `Adjacent sequences: A093850 A093851 A093852 * A093854 A093855 A093856`
	KEYWORD	`nonn`
	AUTHOR	`Goran Kilibarda, Vladeta Jovovic (vladeta(AT)eunet.rs), May 21 2004`

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Last modified February 17 13:28 EST 2012. Contains 206031 sequences.