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A181232 Number of nX(n+2) binary matrices with all rows unique and all columns unique 0
0, 24, 6720, 5644800, 16388749440, 172145618789760, 6709378999665162240, 988932080423985278515200, 559938250258499272920457420800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Superdiagonal 2 of A181230

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A145408 A175672 A181749 * A088616 A158042 A147860

Adjacent sequences:  A181229 A181230 A181231 * A181233 A181234 A181235

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 10 2010

STATUS

approved

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Last modified August 27 20:22 EDT 2014. Contains 246147 sequences.