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Search: id:A028472
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| A028472 |
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Number of perfect matchings in graph P_{10} X P_{n}. |
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+0
2
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| 1, 89, 571, 18061, 185921, 4213133, 53175517, 1031151241, 14479521761, 258584046368, 3852472573499, 65743732590821, 1012747193318519, 16848161392724969, 264499788583572499, 4337452956682508609
(list; graph; listen)
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OFFSET
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1,2
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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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Row 10 of array A099390.
Sequence in context: A142904 A159747 A141866 this_sequence A136646 A142566 A063654
Adjacent sequences: A028469 A028470 A028471 this_sequence A028473 A028474 A028475
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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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