id:A099718 - OEIS Search Results

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

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1, 2, 15, 207, 4274, 120698, 4408714, 200482089, 11035845002, 719691942986, 54661283926338, 4768412660292713 (list; graph; listen)

	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: A020557 A124558 A020565 this_sequence A143881 A132493 A135860` `Adjacent sequences: A099715 A099716 A099717 this_sequence A099719 A099720 A099721`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 26 2004`

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