A179729 Number of permutations of 1..n with the sequence of sums of 6 adjacent elements having exactly 2 maxima.

0, 10080, 181440, 2268000, 24948000, 261954000, 2659456800, 26789162400, 287567280000, 3321654336000

Offset

7,2

Links

Table of n, a(n) for n=7..16.

Crossrefs

Sequence in context: A203865 A145836 A190293 * A217867 A157288 A230033

Adjacent sequences: A179726 A179727 A179728 * A179730 A179731 A179732

Keyword

nonn

Author

R. H. Hardin, Jul 25 2010

Status

approved