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A005118
Number of simple allowable sequences on 1..n containing the permutation 12...n.
(Formerly M2097)
+0
7
1, 1, 1, 2, 16, 768, 292864, 1100742656, 48608795688960, 29258366996258488320, 273035280663535522487992320, 44261486084874072183645699204710400, 138018895500079485095943559213817088756940800
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
AT&T Labs Research
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