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A144924
Number of partition-type permutations in S_n.
+0
1
1, 2, 4, 13, 36, 126, 428, 1681, 6820, 29233, 127865, 592604, 2829477, 14118079, 72122117, 380843081, 2056927326, 11444517369, 65234523659, 380644223976, 2272831229113, 13857568536672, 86164285623173, 546196787212398
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.
AT&T Labs Research
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