A098637 Consider the family of multigraphs enriched by the species of odd sets. Sequence gives number of those multigraphs with n loops and edges.

1, 2, 7, 45, 431, 5677, 97304, 2086120, 54337094, 1681862711, 60786960947, 2529205845825

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: A331711 A223001 A066612 * A162045 A326878 A153549

Adjacent sequences: A098634 A098635 A098636 * A098638 A098639 A098640

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved