A099715 Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n arcs.

1, 1, 8, 113, 2374, 67927, 2508632, 115219211, 6402538044, 42137859873, 32293353537408, 2842256451820073

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]