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%I #8 Sep 13 2013 21:43:58
%S 729,488037,284888979,129504297807,55502388155025,23319328706411649,
%T 9736913305392113829,4057250822057923336761,1689435771741874929364233,
%U 703314412636157164130333145,292767267794819630543369087313
%N Number of nX6 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X7 0..2 array.
%C Column 6 of A228977.
%H R. H. Hardin, <a href="/A228976/b228976.txt">Table of n, a(n) for n = 1..13</a>
%e Some solutions for n=4
%e ..0..0..0..0..0..0....0..0..0..0..0..2....0..0..0..0..0..0....0..0..0..0..1..1
%e ..0..0..0..0..2..0....0..0..0..0..2..2....0..0..0..0..0..0....0..0..0..0..0..1
%e ..0..0..0..1..2..2....0..0..0..1..1..2....0..0..0..0..2..1....0..0..0..0..2..1
%e ..0..0..2..0..1..0....0..0..1..0..0..2....0..0..0..0..1..1....0..0..1..2..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 10 2013
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