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

7,2

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.

Links

Table of n, a(n) for n=7..30.

Crossrefs

Column k=6 of A238125.

Sequence in context: A317599 A122738 A038381 * A321614 A082970 A197868

Adjacent sequences: A241774 A241775 A241776 * A241778 A241779 A241780

Keyword

nonn

Author

Joerg Arndt and Alois P. Heinz, Apr 28 2014

Status

approved