%I #6 Jan 14 2018 04:00:00
%S 397,37293,12746301,15822272735,71947571249709,1200506645405599669
%N Number of connected induced subgraphs in the n X n torus grid graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TorusGridGraph.html">Torus Grid Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Vertex-InducedSubgraph.html">Vertex-Induced Subgraph</a>
%Y Cf. A298106.
%K nonn,more
%O 3,1
%A _Eric W. Weisstein_, Jan 13 2018
%E a(6)-a(8) from _Andrew Howroyd_, Jan 13 2018
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