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%I #4 Jan 16 2014 06:46:11
%S 28978,2273170,153490516,8998042696,482216047328,23797784915364,
%T 1102892178841080,48371216588677388,2027649275673524316,
%U 81727952535760564092,3186374072680537092694,120692189251721727046564
%N Number of (3+1)X(n+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 Row 3 of A235818
%H R. H. Hardin, <a href="/A235820/b235820.txt">Table of n, a(n) for n = 1..163</a>
%e Some solutions for n=1
%e ..0..2....1..3....1..0....3..0....2..1....0..3....3..1....3..0....0..3....2..3
%e ..0..1....2..3....2..0....3..2....0..3....1..2....1..1....1..3....1..3....0..3
%e ..2..2....1..1....1..2....2..3....1..1....1..3....1..3....0..3....3..3....3..3
%e ..1..1....2..2....0..1....0..2....0..2....3..2....3..3....3..2....3..0....0..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 16 2014