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A039917 Number of orderings of 1,2,...,n^2 in an n X n matrix such that each row, each column and both diagonals are increasing. 0
1, 1, 9, 2017, 21569213 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

Index entries for sequences related to Young tableaux.

CROSSREFS

Cf. A039622.

Sequence in context: A114224 A201845 A024125 * A162140 A006945 A089825

Adjacent sequences:  A039914 A039915 A039916 * A039918 A039919 A039920

KEYWORD

nonn

AUTHOR

Floor van Lamoen (fvlamoen(AT)hotmail.com)

EXTENSIONS

One more term from Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Aug 09 2001

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Last modified February 17 20:48 EST 2012. Contains 206085 sequences.