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A001253
Number of permutations of length n by length of runs.
(Formerly M2123 N0840)
+0
1
2, 20, 198, 2048, 22468, 264538, 3340962, 45173518, 652197968, 10024549190
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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 17 23:40 EST 2009. Contains 171025 sequences.
AT&T Labs Research
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