%I #4 Jan 11 2015 08:03:09
%S 218,1888,7216,54688,400068,3369876,40265740,774250356,16204708792,
%T 401697467244,13688214787176,637511964938288,35097886281624988
%N Number of (n+2)X(n+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically
%C Diagonal of A253740
%e Some solutions for n=4
%e ..0..1..0..1..0..1....0..1..0..1..1..0....1..0..1..0..0..0....0..0..0..1..0..1
%e ..1..0..1..0..1..0....0..0..1..0..1..0....1..1..0..1..0..0....0..0..1..0..1..1
%e ..0..1..1..1..0..1....0..0..0..1..0..1....1..1..1..0..1..0....0..1..0..0..0..1
%e ..1..0..1..1..1..0....1..0..0..0..1..0....0..1..1..1..0..1....1..0..0..0..1..0
%e ..0..1..0..1..0..1....0..1..0..0..0..1....1..0..1..1..1..0....0..1..0..1..0..0
%e ..1..1..1..1..1..1....1..0..1..0..0..0....1..1..0..1..0..1....0..0..1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 11 2015
