%I #4 Jan 16 2014 06:42:37
%S 28978,2287822,153490516,9225012664,513135357020,26782783497172,
%T 1328140965773780,62962853445208032,2872298287397796214,
%U 126592143543508692580,5412570935502495274518,225163920450438652782792
%N Number of (n+1)X(3+1) 0..3 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise
%C Column 3 of A235818
%H R. H. Hardin, <a href="/A235817/b235817.txt">Table of n, a(n) for n = 1..63</a>
%e Some solutions for n=1
%e ..1..0..1..1....1..3..3..2....2..3..2..2....1..3..1..0....3..3..3..3
%e ..0..0..0..0....0..1..3..0....2..2..0..1....1..0..1..1....1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 16 2014