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A000506
One half of the number of permutations of [n] such that the differences have 5 runs with the same signs.
(Formerly M5322 N2313)
+0
3
61, 841, 7311, 51663, 325446, 1910706, 10715506, 58258210, 309958755, 1623847695, 8412276585, 43220104041, 220683627988, 1121561317408, 5679711010548, 28683869195556, 144552802373145, 727271783033445
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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