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A028457
Number of perfect matchings in graph P_{2} X C_{5} X P_{n}.
+0
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11, 722, 29213, 1347920, 60155908, 2711547333, 121926974411, 5486824130234, 246868369783200, 11108030731300009, 499808090143585644, 22489082779271197033, 1011905249122931313347, 45531100591422826963680
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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