%I #13 Jan 20 2020 17:17:00

%S 0,0,0,0,0,0,1,7,118,4251,393963

%N Number of 7-chromatic (i.e., chromatic number equals 7) simple graphs on n nodes.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/n-ChromaticGraph.html">n-Chromatic Graph</a>

%Y Column k=7 of A084268.

%Y Cf. A076278, A076279, A076280, A076281, A076282.

%K nonn,more

%O 1,8

%A _Eric W. Weisstein_, Oct 06 2002

%E a(10)-a(11) from _Michael Sollami_, Jan 28 2012