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A238126 Number of standard Young tableaux with n cells and exactly one succession. 3
0, 0, 1, 1, 3, 8, 24, 70, 224, 744, 2588, 9317, 34924, 135297, 542123, 2236834, 9508297, 41511215, 186109781, 854874944, 4021672983, 19344343843, 95093249014, 477137036748, 2442413708120, 12742038926613, 67714763161526, 366266085720565, 2015454903261855 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

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

Also number of ballot sequences having one flat step.

Second column (k=1) of A238125.

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Cf. A237770 (no successions), A238127 (two successions).

Sequence in context: A018046 A095125 A078055 * A079121 A027077 A153774

Adjacent sequences:  A238123 A238124 A238125 * A238127 A238128 A238129

KEYWORD

nonn

AUTHOR

Joerg Arndt and Alois P. Heinz, Feb 21 2014

STATUS

approved

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Last modified June 25 12:01 EDT 2017. Contains 288710 sequences.