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%I #4 Feb 12 2014 07:04:11
%S 6610,86010,1145290,15828110,213127880,2855466356,38540080508,
%T 526083461626,7105289200594,95708446038402,1294310219994414,
%U 17574138476232396,237569759122864504,3207622648771968754
%N Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 4 of A237730
%H R. H. Hardin, <a href="/A237726/b237726.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..2..2..0..1..0....1..0..0..0..1....1..0..0..0..1....2..1..0..0..1
%e ..2..1..0..1..1....2..1..0..2..2....0..1..2..2..0....1..2..1..2..1
%e ..2..1..0..2..1....1..2..1..2..2....0..0..1..0..2....1..1..2..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 12 2014
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