A241778 - OEIS

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A241778

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

1

1, 4, 28, 137, 751, 3797, 19868, 103169, 544446, 2892654, 15609326, 85185225, 471914661, 2647616529, 15072126865, 86928421109, 508477806633, 3013152898489, 18098553323837, 110098999926894, 678500886312946, 4233264326440478, 26741870913391272

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OFFSET

8,2

COMMENTS

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

Also number of ballot sequences having seven flat steps.

LINKS

Table of n, a(n) for n=8..30.

CROSSREFS

Column k=7 of A238125.

Sequence in context: A271603 A139736 A259987 * A128941 A272017 A270218

Adjacent sequences: A241775 A241776 A241777 * A241779 A241780 A241781

KEYWORD

nonn

AUTHOR

Joerg Arndt and Alois P. Heinz, Apr 28 2014

STATUS

approved