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A098345 Consider the family of multigraphs enriched by the species of binary arborescences. Sequence gives number of those multigraphs with n arcs. 0

%I

%S 1,1,10,170,4182,137262,5721356,292803772,17946811644,1292298341980,

%T 107643364177688,10240855765623320

%N Consider the family of multigraphs enriched by the species of binary arborescences. Sequence gives number of those multigraphs with n 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 0,3

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

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Last modified September 18 18:38 EDT 2019. Contains 327180 sequences. (Running on oeis4.)