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A000130 One-half the number of permutations of length n with exactly 1 rising or falling successions.
(Formerly M1528 N0598)
+0
12
0, 0, 1, 2, 5, 20, 115, 790, 6217, 55160, 545135, 5938490, 70686805, 912660508, 12702694075, 189579135710, 3019908731105, 51139445487680, 917345570926087, 17376071107513090, 346563420097249645, 7259714390232227300, 159352909727731210835, 3657569576966074846118 (list; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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