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A099713
Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n loops and edges.
2
1, 2, 11, 103, 1383, 24505, 545354, 14751666, 473719878, 17740486031, 763890459761, 37384489903461
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OFFSET
0,2
REFERENCES
G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004.
LINKS
Table of n, a(n) for n=0..11.
G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]
CROSSREFS
Sequence in context: A339081 A081716 A334240 * A277461 A277470 A343896
Adjacent sequences: A099710 A099711 A099712 * A099714 A099715 A099716
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 26 2004
STATUS
approved

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Last modified November 7 12:11 EST 2024. Contains 377535 sequences.
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