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%I #4 Mar 31 2012 12:36:34
%S 11029,1660672,276030525,51432469614,10120087499636
%N Number of 2nX8 0..3 arrays with values 0..3 introduced in row major order and each element unequal to exactly two horizontal and vertical neighbors
%C Column 4 of A198209
%e Some solutions for n=3
%e ..0..1..0..2..1..2..2..1....0..1..0..2..1..1..3..0....0..1..0..2..0..3..3..2
%e ..1..1..0..2..1..1..1..0....1..1..0..2..0..0..3..3....1..1..0..2..0..0..0..1
%e ..0..0..0..2..0..0..1..0....0..0..0..2..0..0..2..2....0..0..0..2..2..2..0..1
%e ..1..1..1..2..0..0..1..1....1..1..1..2..2..2..2..1....1..1..1..1..1..2..0..0
%e ..0..0..1..2..2..2..0..0....0..0..1..0..0..0..0..1....0..0..0..0..1..2..1..1
%e ..3..0..1..3..3..2..0..2....3..0..1..0..1..1..0..2....1..2..2..0..1..2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 22 2011
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