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A324670
Number of simple graphs on n unlabeled nodes with minimum degree exactly 2.
2
0, 0, 1, 2, 8, 43, 360, 4869, 113622, 4605833, 325817259, 40350371693, 8825083057727, 3447229161054412, 2432897732375453872, 3135299553791882831175, 7445569254636418368355175, 32831169277561326131677454356, 270499962116368309216399255404116
OFFSET
1,4
LINKS
Eric Weisstein's World of Mathematics, Minimum Vertex Degree
FORMULA
a(n) = A261919(n) - A007111(n).
CROSSREFS
Column k=2 of A294217.
A diagonal of A263293.
Sequence in context: A106327 A009309 A276497 * A334335 A283416 A075817
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Sep 03 2019
STATUS
approved