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A028480
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Number of perfect matchings in graph C_{9} X P_{2n}.
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0
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76, 11989, 2091817, 372713728, 66750320449, 11970180565381, 2147314732677364, 385238046548443177, 69115057977256578649, 12399917664600455876068, 2224670061782262303745381
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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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.
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LINKS
| Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.
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CROSSREFS
| Sequence in context: A184290 A093238 A185984 * A111682 A033521 A060716
Adjacent sequences: A028477 A028478 A028479 * A028481 A028482 A028483
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KEYWORD
| nonn
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AUTHOR
| Per Hakan Lundow (phl(AT)theophys.kth.se)
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