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A287512 Number of simple perfect non-bipartite graphs on n vertices. 0
0, 0, 1, 4, 20, 113, 818, 8584, 135637, 3263785, 115779695, 5855248060 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..12.

Eric Weisstein's World of Mathematics, Bipartite Graph

Eric Weisstein's World of Mathematics, Perfect Graph

Eric Weisstein's World of Mathematics, Simple Graph

FORMULA

a(n) = A052431(n) - A033995(n), since all bipartite graphs are perfect. - Falk Hüffner, Aug 10 2017

CROSSREFS

Cf. A033995, A052431.

Sequence in context: A294119 A245375 A108447 * A211248 A028475 A128327

Adjacent sequences:  A287509 A287510 A287511 * A287513 A287514 A287515

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, May 26 2017

EXTENSIONS

a(11)-a(12) from formula by Falk Hüffner, Aug 10 2017

STATUS

approved

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Last modified November 21 14:18 EST 2019. Contains 329371 sequences. (Running on oeis4.)