A244208 Number of ballot sequences of length n having largest ascent 1.

1, 3, 8, 19, 47, 114, 286, 723, 1869, 4870, 12943, 34662, 94055, 257397, 712102, 1983341, 5574561, 15767323, 44933781, 128791036, 371525354, 1077236361, 3141339436, 9203555415, 27098848505, 80132017267, 238015965927, 709753560742, 2125009380084, 6385306592457

Offset

2,2

Links

Table of n, a(n) for n=2..31.

Crossrefs

Column k=1 of A238129.

Sequence in context: A284942 A121811 A370033 * A296329 A339525 A295045

Adjacent sequences: A244205 A244206 A244207 * A244209 A244210 A244211

Keyword

nonn

Author

Joerg Arndt and Alois P. Heinz, Jun 22 2014

Status

approved