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Total domination number of the n X n queen graph.
1

%I #19 Sep 11 2021 10:46:45

%S 2,2,2,3,4,4,5,5,6,7,7,8,9,9,10,10,10,11,12

%N Total domination number of the n X n queen graph.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/QueenGraph.html">Queen Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TotalDominationNumber.html">Total Domination Number</a>

%H Eric W. Weisstein, <a href="/A303003/a303003.png">Example minimum total domination configurations for n X n queen graphs</a>

%K nonn,more,hard

%O 2,1

%A _Eric W. Weisstein_, Apr 17 2018

%E a(17)-a(20) from _Eric W. Weisstein_, Sep 10-11 2021