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A126752
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Number of biconnected graphs on n nodes with chromatic number 4.
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0
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0, 0, 0, 1, 2, 17, 189, 3627, 118114, 6530233, 596566067
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,5
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COMMENTS
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It is possible that the definition should say "connected" rather than "biconnected". Should be rechecked! - Max Alekseyev and Brendan McKay, Jun 17 2008
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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