%I
%S 1,8,51,1015,8917,343145,3696933,330654951,4301737251,1093232460925
%N Number of n X n 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in rowmajor sequential order.
%C Diagonal of A267644.
%e Some solutions for n=5
%e ..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..1..0..1
%e ..1..0..1..0..0....0..1..1..0..0....1..0..0..1..1....1..0..1..0..1
%e ..1..0..0..1..1....1..0..1..0..1....0..1..1..0..0....0..1..0..1..0
%e ..0..1..0..0..1....0..1..0..1..1....0..1..0..0..1....1..0..1..1..0
%e ..1..0..1..0..0....1..0..1..1..0....1..0..1..1..0....1..1..0..0..1
%Y Cf. A267644.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 18 2016
