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%I #4 Feb 08 2014 05:54:54
%S 4272,25974,125998,594190,2864838,14469792,71637702,345945382,
%T 1692387998,8423481016,41623347902,203854940676,1002036877470,
%U 4949498743130,24401744486702,120014028398474,590821956837072,2912112513596448
%N Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 4 of A237463
%H R. H. Hardin, <a href="/A237459/b237459.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..2..2..1..1....0..1..0..1..2....0..1..0..0..2....0..1..1..2..2
%e ..1..1..2..0..1....2..2..0..0..0....0..1..1..1..0....2..1..0..2..1
%e ..1..0..2..0..0....2..1..2..1..1....0..2..0..1..0....2..2..1..0..2
%e ..1..2..2..1..2....1..0..0..1..1....1..2..2..1..1....1..0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 08 2014
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