Number of perfect matchings in the P_5 X C_{2n} graph.

A253150

Number of perfect matchings in the P_5 X C_{2n} graph.

Terms

    a(0) =450a(1) =4480a(2) =51842a(3) =631750a(4) =7840800a(5) =97964230a(6) =1227006722a(7) =15382568320a(8) =192913661250

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