A099713 Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n loops and edges.

1, 2, 11, 103, 1383, 24505, 545354, 14751666, 473719878, 17740486031, 763890459761, 37384489903461

Offset: 0

Author

N. J. A. Sloane, Oct 26 2004

Keywords

• nonn

References

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

Links

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