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A089673
a(n) = number of n X n (0,1) matrices A such that the 2n+2 vectors consisting of the rows and the columns of the matrix A, as well as the main diagonal and the main antidiagonal, are all distinct.
13
0, 0, 0, 652, 1658784
OFFSET
1,4
CROSSREFS
Binary matrices with distinct rows and columns, various versions: A059202, A088309, A088310, A088616, A089673, A089674, A093466, A094000, A094223, A116532, A116539, A181230, A259763
Sequence in context: A204505 A350979 A188414 * A104823 A198170 A145125
KEYWORD
nonn,more
AUTHOR
Vladeta Jovovic, Jan 04 2004
STATUS
approved