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A299699
Number of rim-hook (or border-strip) tableaux of size n.
6
1, 4, 13, 50, 179, 744, 2975, 13020, 57215, 265172, 1245355
OFFSET
1,2
COMMENTS
A rim-hook tableau is a generalized Young tableau in which all columns and rows are weakly decreasing and all regions are connected border-strips.
REFERENCES
Richard P. Stanley, Enumerative Combinatorics Volume 2, Cambridge University Press, 1999, Chapter 7.17.
EXAMPLE
The a(3) = 13 tableaux:
3 2 2 1 3 2 3 1 2 2 2 1 1 1 3 2 1 2 2 1 2 1 1 1 1 1
2 2 1 1 1 2 1 2 1
1 1 1 1
KEYWORD
nonn,more
AUTHOR
Gus Wiseman, Feb 16 2018
STATUS
approved