A098621 Consider the family of multigraphs enriched by the species of partitions. Sequence gives number of those multigraphs with n loops and edges.

1, 2, 11, 95, 1173, 19364, 407447, 10552664, 327719713, 119600021230, 504784756672, 24321086122048

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..11.

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

Crossrefs

Sequence in context: A236962 A292916 A290586 * A266834 A131407 A197994

Adjacent sequences: A098618 A098619 A098620 * A098622 A098623 A098624

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved