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%I #4 Feb 16 2014 06:52:50
%S 1074202,14222512,149625960,2480183866,43487194848,713207137992,
%T 12120042669700,209264120975366,3546371438646104,60626491891291716,
%U 1039560781186680172,17749177199163181458,303538610610211774240
%N Number of (n+1)X(6+1) 0..3 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 6 of A237974
%H R. H. Hardin, <a href="/A237972/b237972.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..1..0..0..1..3..3..2....1..0..0..2..2..3..2....0..0..1..2..0..2..3
%e ..3..0..3..0..2..1..2....3..1..0..1..3..2..0....2..0..2..0..1..2..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 16 2014
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