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%I #12 Apr 18 2018 02:41:47
%S 4,32,370,10102,547888,57177700,11840492228,4851988794700,
%T 3925043687686610,6272313979455281150,19802247395866119585902,
%U 123501868366552999691029394,1521619453753652011100192319196,37035171896737433898000971545353724,1780729821252117006470518879967287810584
%N Number of total dominating sets in the n-triangular grid graph.
%H Andrew Howroyd, <a href="/A303049/b303049.txt">Table of n, a(n) for n = 1..19</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TotalDominatingSet.html">Total Dominating Set</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TriangularGridGraph.html">Triangular Grid Graph</a>
%Y Cf. A287064, A288721, A302486.
%K nonn
%O 1,1
%A _Eric W. Weisstein_, Apr 17 2018
%E Terms a(6) and beyond from _Andrew Howroyd_, Apr 17 2018
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