A241803 Number of ballot sequences of length n having exactly ten descents.

1, 279, 19125, 651245, 14366695, 233582056, 3019039806, 32552281146, 302772441833, 2489676658658, 18436266612425, 124754494349824, 780244984225568, 4553372454106529, 24982642521157848, 129722480362398371, 640852528623371007, 3026558205823169395

Offset

15,2

Links

Table of n, a(n) for n=15..32.

Example

a(15) = 1: [1,2,1,3,2,1,4,3,2,1,5,4,3,2,1].

Crossrefs

Column k=10 of A238121 and of A238122.

Sequence in context: A160116 A177844 A289303 * A361038 A245208 A256708

Adjacent sequences: A241800 A241801 A241802 * A241804 A241805 A241806

Keyword

nonn

Author

Joerg Arndt and Alois P. Heinz, Apr 28 2014

Status

approved