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A033508 Number of matchings in graph P_{5} X P_{n} 2
8, 228, 5096, 120465, 2810694, 65805403, 1539222016, 36012826776, 842518533590, 19711134149599, 461148537211748, 10788744980331535, 252406631116215534, 5905146419664967132, 138153075553825008696 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

REFERENCES

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.

LINKS

Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.

CROSSREFS

Sequence in context: A013377 A189445 A193786 * A111836 A134504 A145418

Adjacent sequences:  A033505 A033506 A033507 * A033509 A033510 A033511

KEYWORD

nonn

AUTHOR

Per Hakan Lundow (phl(AT)theophys.kth.se)

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.