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Number of matchings in the n X n torus grid graph C_n X C_n.
2

%I #13 Aug 04 2024 15:13:52

%S 1,7,370,41025,15637256,23079663560,127193770624285,

%T 2645142169931308801,206932904585998805434690,

%U 60953421285412135689567940992,67583556205239600880061198746186383,282092296203355454009618109524478429807744

%N Number of matchings in the n X n torus grid graph C_n X C_n.

%C C_{n} X C_{n} is also known as the (n,n)-torus grid graph.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Matching.html">Matching</a>.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TorusGridGraph.html">Torus Grid Graph</a>.

%Y Cf. A270246, A102080, A028420, A270228, A027683, A228316, A222199.

%K nonn

%O 1,2

%A _Andrew Howroyd_, Mar 13 2016