A098629 Consider the family of multigraphs enriched by the species of parts. Sequence gives number of those multigraphs with n loops and edges.

1, 4, 36, 528, 11392, 334624, 12677824, 596369664, 33872839680, 2274079648768, 177449470237696

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 A349650 A294359

Adjacent sequences: A098626 A098627 A098628 * A098630 A098631 A098632

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved