A126745 Number of connected graphs on n nodes with clique number 3.

0, 0, 1, 2, 11, 63, 477, 5339, 94535, 2774240, 135794730

Offset

1,4

Links

Table of n, a(n) for n=1..11.

Keith M. Briggs, Combinatorial Graph Theory

Crossrefs

A diagonal of triangle in A126744.

Sequence in context: A114175 A080049 A370392 * A362799 A179120 A373890

Adjacent sequences: A126742 A126743 A126744 * A126746 A126747 A126748

Keyword

nonn,hard,more

Author

N. J. A. Sloane, Feb 18 2007

Extensions

a(11) from Michael Sollami, Jan 29 2012

Status

approved