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A126754
Number of biconnected graphs on n nodes with chromatic number 6.
1
0, 0, 0, 0, 0, 1, 4, 59, 1631, 101409, 13626123
OFFSET
1,7
COMMENTS
It is possible that the definition should say "connected" rather than "biconnected". Should be rechecked! - Max Alekseyev and Brendan McKay, Jun 17 2008
CROSSREFS
A diagonal of triangle in A126749.
Sequence in context: A199107 A280668 A198508 * A264820 A194534 A331712
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 18 2007
EXTENSIONS
a(11) from Michael Sollami, Feb 18 2012
STATUS
approved