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Search: id:A028481
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A028481 Number of perfect matchings in graph C_{10} X P_{n}. +0
1
2, 125, 1452, 37584, 631750, 13344409, 248864088, 4964424625, 95464562688, 1872712598261, 36340255066500, 709361528836661, 13802335712555182, 269027285006250000, 5238744073324512432, 102066374099541816889 (list; graph; listen)
OFFSET

1,1

REFERENCES

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.

LINKS

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

CROSSREFS

Sequence in context: A065705 A042921 A123006 this_sequence A049659 A157070 A064070

Adjacent sequences: A028478 A028479 A028480 this_sequence A028482 A028483 A028484

KEYWORD

nonn

AUTHOR

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

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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