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A099712 Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n edges. 0

%I

%S 1,1,4,30,338,5169,101251,2446806,71043973,2429762734,96364601877,

%T 4375603494478

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

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

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Last modified February 15 16:25 EST 2019. Contains 320136 sequences. (Running on oeis4.)