A099681 - OEIS

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A099681

Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n loops and edges.

1, 2, 72, 12630, 6608296, 7926336602, 18527530189240 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	G. Paquin, D\'enombrement de multigraphes enrichis, M\'emoire, Math. Dept., Univ. Qu\'ebec \`a Montr\'eal, 2004.
	CROSSREFS	`Sequence in context: A174582 A051443 A123072 * A062082 A067689 A079478` `Adjacent sequences: A099678 A099679 A099680 * A099682 A099683 A099684`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 26 2004`

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Last modified February 16 05:51 EST 2012. Contains 205860 sequences.