Search: id:A126752
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%I A126752
%S A126752 0,0,0,1,2,17,189,3627,118114,6530233
%N A126752 Number of biconnected graphs on n nodes with chromatic number 4.
%C A126752 It is possible that the definition should say "connected" rather than 
               "biconnected". Should be rechecked! - Max Alekseyev and Brendan McKay, 
               Jun 17 2008
%H A126752 Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial 
               Graph Theory</a>
%Y A126752 A diagonal of triangle in A126749.
%Y A126752 Sequence in context: A011550 A102023 A058010 this_sequence A004029 A144208 
               A058239
%Y A126752 Adjacent sequences: A126749 A126750 A126751 this_sequence A126753 A126754 
               A126755
%K A126752 nonn
%O A126752 1,5
%A A126752 N. J. A. Sloane (njas(AT)research.att.com), Feb 18 2007

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