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%I #5 Mar 31 2012 12:36:34
%S 433,14109,421185,13048509,396482929,12354617337,388054368497,
%T 12268223577717,389802133342121,12442366745406193,398756914767870161,
%U 12824613775169911957,413731612612141327185,13383113394670397174673
%N Number of 2nX8 0..2 arrays with values 0..2 introduced in row major order and each element unequal to exactly two horizontal and vertical neighbors
%C Column 4 of A198452
%H R. H. Hardin, <a href="/A198450/b198450.txt">Table of n, a(n) for n = 1..18</a>
%e Some solutions for n=3
%e ..0..1..0..2..2..0..2..0....0..1..0..2..0..0..1..0....0..1..0..2..1..2..2..0
%e ..1..1..0..0..0..0..2..1....1..1..0..2..2..2..1..1....1..1..0..2..1..1..1..2
%e ..2..2..2..2..1..1..2..1....0..0..0..1..1..2..2..2....0..0..0..2..2..2..1..2
%e ..0..0..0..2..1..1..2..2....2..2..2..1..1..0..0..0....1..2..2..0..0..2..1..1
%e ..1..1..0..2..2..2..1..1....0..0..2..2..2..0..1..1....1..2..2..0..0..2..2..2
%e ..2..1..0..1..1..2..1..0....2..0..1..1..2..0..1..0....2..0..0..2..2..1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 25 2011