A099682 - OEIS

A099682

Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n loops and arcs.

%I #9 Jun 25 2017 15:09:07

%S 1,2,132,46454,48860748,117834107302,554073633956884

%N Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n loops and arcs.

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

%H G. Paquin, <a href="/A038205/a038205.pdf">Dénombrement de multigraphes enrichis</a>, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Oct 26 2004