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A099693
Consider the family of multigraphs enriched by the species of directed sets. Sequence gives number of those multigraphs with n loops and edges.
3
1, 2, 11, 89, 1063, 17099, 352700, 8987170, 275303298, 9930027149, 414883314611
(list; graph; refs; listen; history; text; internal format)
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..10.
G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission]
CROSSREFS
Sequence in context: A099662 A307770 A355425 * A197794 A197914 A371537
Adjacent sequences: A099690 A099691 A099692 * A099694 A099695 A099696
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 26 2004
STATUS
approved

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Last modified November 7 10:21 EST 2024. Contains 377533 sequences.
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