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A297061 Number of edge covers in the n X n triangular grid graph. 1

%I

%S 0,4,198,84682,281721996,7392711987818,1528658402287559670,

%T 2490983667363798650708788,31987702603596066902310936860946,

%U 3237032742135065575663156511653859260726,2581445727611992619431296420645395411748335733438

%N Number of edge covers in the n X n triangular grid graph.

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

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

%Y Cf. A269869.

%K nonn

%O 0,2

%A _Eric W. Weisstein_, Dec 24 2017

%E a(5)-a(10) from _Andrew Howroyd_, Dec 27 2017

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Last modified June 17 00:17 EDT 2021. Contains 345080 sequences. (Running on oeis4.)