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A098620 Consider the family of multigraphs enriched by the species of partitions. Sequence gives number of those multigraphs with n edges. 0
1, 1, 4, 26, 257, 3586, 66207, 1540693, 43659615, 1469677309, 57681784820, 2601121752854 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

G. Paquin, D\'enombrement de multigraphes enrichis, M\'emoire, Math. Dept., Univ. Qu\'ebec \`a Montr\'eal, 2004.

CROSSREFS

Sequence in context: A192546 A056786 A006056 * A002465 A079473 A145164

Adjacent sequences:  A098617 A098618 A098619 * A098621 A098622 A098623

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 26 2004

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Last modified February 17 04:46 EST 2012. Contains 205985 sequences.