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A003319
Number of connected permutations of [1..n] (those not fixing [1..j] for 0<j<n). Also called indecomposable permutations.
(Formerly M2948)
+0
48
1, 1, 3, 13, 71, 461, 3447, 29093, 273343, 2829325, 31998903, 392743957, 5201061455, 73943424413, 1123596277863, 18176728317413, 311951144828863, 5661698774848621, 108355864447215063, 2181096921557783605
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.
AT&T Labs Research
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