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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; text; internal format)
OFFSET

0,3

REFERENCES

G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004.

LINKS

Table of n, a(n) for n=0..11.

G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]

CROSSREFS

Sequence in context: A056786 A006056 A215242 * A215266 A002465 A248668

Adjacent sequences:  A098617 A098618 A098619 * A098621 A098622 A098623

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 26 2004

STATUS

approved

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Last modified November 18 16:04 EST 2018. Contains 317323 sequences. (Running on oeis4.)