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%I #5 Nov 17 2017 04:04:35
%S 1,2,1308,1238775828
%N Chromatic invariant for the n X n queen graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ChromaticInvariant.html">Chromatic Invariant</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/QueenGraph.html">Queen Graph</a>
%K nonn,more
%O 1,2
%A _Eric W. Weisstein_, Nov 16 2017
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