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A319896
Number of connected non-regular multigraphs with n nodes of degree up to n.
1
0, 1, 0, 3, 31, 595, 33931, 6020479, 3613415171
OFFSET
0,4
COMMENTS
Multigraphs are loopless.
Terms computed using nauty traces.
LINKS
Brendan McKay and Adolfo Piperno, Nauty traces
FORMULA
a(n) = A289988(n) - A319897(n).
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
Natan Arie Consigli, Sep 30 2018
STATUS
approved