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Number of n-node simple graphs having clique number 6.
9

%I #25 Feb 22 2023 04:47:56

%S 0,0,0,0,0,1,6,80,1995,112225,13893557,3514580130,1696127391214

%N Number of n-node simple graphs having clique number 6.

%C Also, number of n-node simple graphs having independence number 6. - _Andrew Howroyd_, Oct 31 2017

%H Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial Graph Theory</a>.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/CliqueNumber.html">Clique Number</a>.

%Y Column 6 of A263341.

%Y Cf. A052450, A052451, A052452, A052453, A077392, A077394.

%K nonn,more

%O 1,7

%A _Eric W. Weisstein_, Nov 03 2002

%E a(10) from _Keith Briggs_, Mar 15 2006

%E a(11) from _Michael Sollami_, Jan 29 2012

%E a(12) from _Michael Sollami_, Mar 26 2012

%E a(13) from _Brendan McKay_, May 07 2018