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%I #5 Mar 31 2012 12:36:44
%S 13,410,16393,983981,61807736,3762507339,208164634003,10298954399450,
%T 457194210355549,18377434753379050,675525914078702215,
%U 22913890806174601101,722808878339707158532,21342091118575178714919
%N Number of nX6 0..2 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor
%C Column 6 of A201539
%H R. H. Hardin, <a href="/A201537/b201537.txt">Table of n, a(n) for n = 1..53</a>
%e Some solutions for n=3
%e ..0..0..1..1..2..2....0..0..0..2..2..2....0..0..1..1..1..2....0..0..0..2..2..2
%e ..0..0..1..2..0..1....0..0..1..1..1..1....1..1..0..1..1..2....0..0..2..1..1..1
%e ..2..2..1..2..0..1....0..1..1..0..0..0....2..2..0..0..0..0....0..0..2..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 02 2011
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