A241776 Number of standard Young tableaux with n cells and exactly five successions.

1, 3, 17, 69, 322, 1408, 6440, 29555, 139005, 662522, 3228150, 15994167, 80849918, 415684406, 2177223330, 11594426886, 62826444538, 345909306526, 1935762918301, 10999013559517, 63460591709283, 371497097807233, 2206388300667674, 13286470507994738

Offset: 6

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 five flat steps.

Crossrefs

Column k=5 of A238125.