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A099709 Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n loops and edges. 2

%I #9 Jun 25 2017 15:18:40

%S 1,2,15,181,3039,66065,1779764,57667098,2198654278,96987734231,

%T 4883685562991,277612787114231

%N Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n loops and edges.

%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

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)