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Search: id:A028451
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| A028451 |
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Number of perfect matchings in graph P_{2} X P_{7} X P_{n}. |
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+0
1
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| 21, 6272, 880163, 152526845, 24972353440, 4161756233501, 690427159718433, 114725843769441312, 19056798015394695543, 3165986817537284900809, 525966380704787334395776, 87380576637559587656345353
(list; graph; listen)
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OFFSET
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1,1
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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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Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.
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CROSSREFS
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Sequence in context: A078395 A055416 A074053 this_sequence A135823 A013726 A048914
Adjacent sequences: A028448 A028449 A028450 this_sequence A028452 A028453 A028454
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KEYWORD
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nonn
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AUTHOR
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Per Hakan Lundow (phl(AT)theophys.kth.se)
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