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A000479
Number of 1-factorizations of K_{n,n}.
+0
6
1, 1, 1, 2, 24, 1344, 1128960, 12198297600, 2697818265354240, 15224734061278915461120, 2750892211809148994633229926400, 19464657391668924966616671344752852992000
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Maintained by
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.
AT&T Labs Research
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