id:A099707 - OEIS Search Results

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Consider the family of multigraphs enriched by the species of directed graphs. Sequence gives number of those multigraphs with n arcs.

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1, 2, 40, 1632, 140128, 42396096, 71916221184, 569069398642688, 18501543711357418496, 2419851465592233142433792 (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: A127429 A012834 A012241 this_sequence A163826 A000816 A000819` `Adjacent sequences: A099704 A099705 A099706 this_sequence A099708 A099709 A099710`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 26 2004`

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Last modified November 27 14:17 EST 2009. Contains 167569 sequences.