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%I #9 Jun 19 2014 23:56:37
%S 8,52,328,2144,14220,104404,811604,7103748,67274976,713213320,
%T 8295727284,106973119052,1531000108588
%N Number of (n+1) X (n+1) 0..1 arrays with the number of equal 2 X 2 subblock diagonal pairs and equal antidiagonal pairs differing from each horizontal or vertical neighbor, and new values 0..1 introduced in row major order.
%C Diagonal of A205226.
%e Some solutions for n=4:
%e ..0..0..0..0..0....0..1..0..1..1....0..0..1..1..0....0..1..1..1..1
%e ..1..1..0..0..1....1..1..0..0..0....0..1..0..0..1....0..1..1..0..0
%e ..1..1..0..1..0....1..1..1..1..0....1..0..0..0..0....1..0..1..0..0
%e ..0..0..0..1..1....1..0..0..1..0....1..1..1..0..0....0..0..1..1..1
%e ..0..1..1..1..1....0..1..0..1..1....1..1..0..1..0....0..0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 23 2012
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