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%I #6 Dec 18 2015 18:17:56
%S 2,8,126,10016,3648810,5616280768,35610018145138
%N Number of n X n 0..1 arrays with no row or column sum equal to the previous
%C Column 1 of A202651
%e Some solutions for n=3
%e ..1..0..1....0..0..0....1..1..0....0..1..0....0..0..1....0..1..0....0..1..1
%e ..0..0..0....1..0..1....0..1..0....0..1..1....0..1..1....0..1..1....0..1..0
%e ..1..0..1....1..0..0....0..0..0....0..1..0....0..0..1....1..1..1....1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 22 2011