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A241777 Number of standard Young tableaux with n cells and exactly six successions. 1
1, 4, 23, 104, 510, 2411, 11661, 57226, 283833, 1434373, 7346663, 38317226, 202773341, 1091360787, 5961577175, 33093602158, 186413366123, 1066200757106, 6185213644077, 36404110664402, 217206981954701, 1313899575466329, 8052745347023754, 50003529679287381 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 27 16:35 EST 2021. Contains 349394 sequences. (Running on oeis4.)