A130661 1/256 the number of permutations of 0..n having exactly 5 maxima.

0, 0, 0, 0, 0, 0, 0, 0, 31, 1382, 35396, 686044, 11204160, 163014240, 2184175040, 27534645760, 331417960960, 3848744330240, 43455499573248, 479802090507264

Offset

0,9

Links

Table of n, a(n) for n=0..19.

Formula

a(n) = A179708(n+1)/256. - R. J. Mathar, Mar 01 2015

Crossrefs

Cf. A100575.

Sequence in context: A234115 A057008 A159487 * A187701 A185512 A221444

Adjacent sequences: A130658 A130659 A130660 * A130662 A130663 A130664

Keyword

nonn

Author

R. H. Hardin, Aug 11 2007

Status

approved