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A098629 Consider the family of multigraphs enriched by the species of parts. Sequence gives number of those multigraphs with n loops and edges. 0
1, 4, 36, 528, 11392, 334624, 12677824, 596369664, 33872839680, 2274079648768, 177449470237696 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

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

LINKS

Table of n, a(n) for n=0..10.

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

CROSSREFS

Sequence in context: A052746 A145084 A179422 * A308333 A294359 A178184

Adjacent sequences:  A098626 A098627 A098628 * A098630 A098631 A098632

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 26 2004

STATUS

approved

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Last modified April 8 02:27 EDT 2020. Contains 333312 sequences. (Running on oeis4.)