A241777 Number of standard Young tableaux with n cells and exactly six successions.

1, 4, 23, 104, 510, 2411, 11661, 57226, 283833, 1434373, 7346663, 38317226, 202773341, 1091360787, 5961577175, 33093602158, 186413366123, 1066200757106, 6185213644077, 36404110664402, 217206981954701, 1313899575466329, 8052745347023754, 50003529679287381

Offset: 7

Author

Joerg Arndt and Alois P. Heinz, Apr 28 2014

Keywords

• nonn

Comments

A succession is a pair of cells (v, v+1) lying in the same row.

Also number of ballot sequences having six flat steps.

Crossrefs

Column k=6 of A238125.