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Number of connected triangle-free graphs on n nodes with edge chromatic number 6.
0

%I #10 Mar 31 2012 10:33:03

%S 0,0,0,0,0,0,1,6,57,659,10236,204927,5231080,166394885,6459372691

%N Number of connected triangle-free graphs on n nodes with edge chromatic number 6.

%Y Cf. A207410, A207408.

%K nonn,more

%O 1,8

%A _Michael Sollami_, Feb 17 2012