Rows and columns again
Yuval Dekel
dekelyuval at hotmail.com
Mon Nov 17 19:31:46 CET 2003
Following sequence A088310 let :
a(n) = number of nxn (0,1) matrices A such that the 2n vectors
consisting of the rows and the columns of the matrix A are all distinct .
Vladeta Jovovic computed the first 5 terms of a(n) : 0,0,24,6840,6568800 .
Let me ask for a formula for a(n) .
Thanks,
Yuval
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