A099689 Consider the family of multigraphs enriched by the species of mod-6 sets. Sequence gives number of those multigraphs with 6n loops and edges.

1, 2, 3236, 123060758

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..3.

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

Crossrefs

Sequence in context: A175080 A243649 A171154 * A065671 A094211 A350418

Adjacent sequences: A099686 A099687 A099688 * A099690 A099691 A099692

Keyword

nonn

Author

N. J. A. Sloane, Oct 26 2004

Status

approved