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A028458
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Number of perfect matchings in graph P_{2} X C_{6} X P_{n}.
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1
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1, 20, 3108, 297296, 31937617, 3350337360, 353544256465, 37264079953664, 3928877032323636, 414211112701109036, 43669866502128209569, 4604058193083952217472, 485400369515158307543761, 51175176191003066916312572, 5395337413785403025694582228
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OFFSET
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0,2
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REFERENCES
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Per Hakan Lundow, "Computation of matching polynomials and the number of 1-factors in polygraphs", Research report, No 12, 1996, Department of Math., Umea University, Sweden.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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