%I #4 Dec 30 2014 08:22:47
%S 81,1752,64560,516928,16534784,45899840,2762956252,2818822376,
%T 415652059980,163088180880,58352627572340,9240725160960,
%U 7903320200155840,527212884271456,1048584505666800960
%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally
%C Diagonal of A253314
%e Some solutions for n=3
%e ..2..2..0..0....2..0..0..0....1..1..2..1....1..1..0..0....2..0..0..2
%e ..2..0..0..1....0..0..0..1....0..2..0..2....2..0..2..1....2..1..0..2
%e ..1..2..0..0....1..2..0..0....1..0..2..0....1..2..0..2....0..0..2..0
%e ..2..0..1..2....1..0..0..0....0..0..1..0....0..0..0..1....2..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2014
