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A033510
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Number of matchings in graph P_{7} X P_{n}
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3
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21, 2356, 196785, 17525619, 1539222016, 135658637925, 11945257052321, 1052091957273408, 92657526436631289, 8160498611028648795, 718704019165239462736, 63297158846544276862187
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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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 reports, No 12, 1996, Department of Mathematics, Umea University.
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LINKS
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Table of n, a(n) for n=0..11.
Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.
Sergey Perepechko, Generating function, May 07 2013
Sergey Perepechko, Text version of generating function
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CROSSREFS
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Sequence in context: A119099 A215160 A219000 * A123844 A172622 A172675
Adjacent sequences: A033507 A033508 A033509 * A033511 A033512 A033513
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KEYWORD
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nonn,changed
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AUTHOR
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Per H. Lundow
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STATUS
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approved
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