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A319897 Number of connected regular loopless multigraphs on n unlabeled nodes with degree up to n. 2
1, 0, 2, 1, 6, 7, 195, 984, 3491378, 35494648 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Terms computed using nauty traces.

LINKS

Table of n, a(n) for n=0..9.

Brendan McKay and Adolfo Piperno, Nauty traces

CROSSREFS

Cf. A289986.

Sequence in context: A172285 A192232 A243320 * A193734 A318390 A319511

Adjacent sequences:  A319894 A319895 A319896 * A319898 A319899 A319900

KEYWORD

nonn,more

AUTHOR

Natan Arie Consigli, Nov 28 2018

STATUS

approved

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Last modified February 20 13:20 EST 2020. Contains 332077 sequences. (Running on oeis4.)