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%I #4 Jan 16 2014 08:00:47
%S 20537,1378463,87276535,4948377018,265469754317,13462405996292,
%T 655276302552671,30775243815415173,1403763801656275930,
%U 62473920005481373345,2723821189454625298291,116744916159554640181931
%N Number of (4+1)X(n+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise
%C Row 4 of A235833
%H R. H. Hardin, <a href="/A235836/b235836.txt">Table of n, a(n) for n = 1..79</a>
%e Some solutions for n=1
%e ..0..1....2..1....0..2....2..0....0..2....2..2....1..0....0..0....2..1....1..2
%e ..1..2....0..2....2..1....2..0....2..2....0..1....1..1....2..2....2..1....1..2
%e ..2..1....2..0....1..2....0..1....0..1....2..1....0..1....1..0....1..0....1..0
%e ..2..2....0..2....2..2....1..2....2..2....1..1....1..1....1..2....2..1....1..0
%e ..2..1....0..0....1..1....0..1....1..0....2..1....2..2....1..0....1..2....1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 16 2014
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