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%I #4 Jan 12 2014 06:31:02
%S 17837,1383617,114840543,9226436673,682927935295,45560931506381,
%T 2748535870959415,151139535366320389,7661370909659405129,
%U 361493024903082821331,16020641785114433587013,671836496638837570805585
%N Number of (n+1)X(4+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise
%C Column 4 of A235565
%H R. H. Hardin, <a href="/A235563/b235563.txt">Table of n, a(n) for n = 1..68</a>
%e Some solutions for n=1
%e ..1..1..1..1..2....0..2..0..1..0....2..1..2..0..0....2..2..1..0..1
%e ..2..1..0..2..0....1..1..2..0..1....1..1..0..0..2....0..2..2..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 12 2014
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