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A100630 Triangle read by rows: row n gives the index number in the tables of permutations of order n+1, n+2, ... of the permutation in which the first n items are reversed and the remaining items are in order. +0
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1, 2, 5, 6, 14, 23, 24, 54, 86, 119, 120, 264, 414, 566, 719, 720, 1560, 2424, 3294, 4166, 5039, 5040, 10800, 16680, 22584, 28494, 34406, 40319, 40320, 85680, 131760, 177960, 224184, 270414, 316646, 362879, 362880, 766080, 1174320, 1583280 (list; table; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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