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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.
0
1, 2, 3236, 123060758
OFFSET
0,2
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]
CROSSREFS
Sequence in context: A175080 A243649 A171154 * A065671 A094211 A372116
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 26 2004
STATUS
approved