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A241780
Number of standard Young tableaux with n cells and exactly nine successions.
1
1, 5, 42, 238, 1499, 8635, 50873, 294903, 1724689, 10094399, 59679199, 355198229, 2136972743, 12972026795, 79626155414, 493684963581, 3095482758334, 19612796554079, 125656314294772, 813576800235695, 5325370849930701, 35223931484275717, 235474448496780769
OFFSET
10,2
COMMENTS
A succession is a pair of cells (v, v+1) lying in the same row.
Also number of ballot sequences having nine flat steps.
CROSSREFS
Column k=9 of A238125.
Sequence in context: A327269 A266021 A062021 * A215785 A082145 A126765
KEYWORD
nonn
AUTHOR
Joerg Arndt and Alois P. Heinz, Apr 28 2014
STATUS
approved