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

0,3

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: A072402 A092084 A346985 * A023814 A217772 A062126

Adjacent sequences: A099712 A099713 A099714 * A099716 A099717 A099718

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved