%I
%S 81,1068,12686,92392,773442,5604400,44834198,289134368,2222640774,
%T 14296163080,109103294482,686921984208,5195005028738,32919630237968,
%U 247864648460478,1570367863370880
%N Number of (n+1)X(n+1) 0..2 arrays colored with the difference of the maximum and minimum in each 2X2 subblock
%C Diagonal of A236055
%e Some solutions for n=4
%e ..1..1..0..1..2....2..0..0..2..1....2..0..0..1..1....0..2..2..1..0
%e ..1..2..1..0..0....0..1..1..2..2....2..1..1..2..2....1..2..1..0..1
%e ..0..1..2..1..0....0..1..1..2..2....1..1..1..2..2....2..1..0..1..2
%e ..0..0..1..1..2....2..1..0..1..2....1..1..0..1..2....0..1..1..2..2
%e ..2..1..0..2..1....2..2..0..0..2....1..2..0..0..0....0..1..1..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 18 2014
