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A126746 Number of connected graphs on n nodes with clique number 4. 1
0, 0, 0, 1, 3, 25, 266, 4646, 136935, 7121703, 647596643 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

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: A006091 A009042 A080896 * A118989 A229162 A123989

Adjacent sequences:  A126743 A126744 A126745 * A126747 A126748 A126749

KEYWORD

nonn,hard,more

AUTHOR

N. J. A. Sloane, Feb 18 2007

EXTENSIONS

a(11) from Michael Sollami, Jan 29 2012.

STATUS

approved

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Last modified May 23 06:42 EDT 2017. Contains 286909 sequences.