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A360863
Number of unlabeled connected multigraphs with n edges and degree >= 3 at each node, loops allowed.
5
0, 1, 3, 5, 13, 36, 99, 301, 980, 3345, 12036, 45399, 178420, 729149
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..14.
FORMULA
Inverse Euler transform of A360865.
CROSSREFS
Row sums of A360862.
Cf. A360864 (by circuit rank), A360865 (not necessarily connected).
Sequence in context: A324783 A032009 A032027 * A005383 A306826 A175257
Adjacent sequences: A360860 A360861 A360862 * A360864 A360865 A360866
KEYWORD
nonn,more
AUTHOR
Andrew Howroyd, Feb 24 2023
STATUS
approved

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Last modified November 14 18:14 EST 2024. Contains 377731 sequences.
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