A179716 Number of permutations of 1..n with the sequence of sums of 3 adjacent elements having exactly 1 maximum

0, 6, 24, 90, 360, 1680, 7840, 36960, 184800, 924000, 4643100, 24144120, 125621496, 655350696, 3495203712

Offset

2,2

Links

Table of n, a(n) for n=2..16.

Crossrefs

Sequence in context: A006780 A001352 A155602 * A326755 A365978 A079839

Adjacent sequences: A179713 A179714 A179715 * A179717 A179718 A179719

Keyword

nonn

Author

R. H. Hardin Jul 25 2010

Status

approved