|
%I #4 Mar 31 2012 12:36:34
%S 2763,146187,7302285,396482929,22496409154
%N Number of 2nX10 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 5 of A198452
%e Some solutions for n=3
%e ..0..1..0..0..2..1..2..1..1..0....0..1..0..0..2..1..1..0..1..2
%e ..2..1..2..2..2..1..2..2..2..2....2..1..2..2..2..0..0..0..1..0
%e ..2..1..2..0..0..1..0..0..0..0....2..1..2..1..1..0..2..2..1..0
%e ..0..1..2..0..0..1..0..2..2..1....1..1..2..1..1..0..2..2..1..1
%e ..0..1..2..2..2..1..0..2..2..1....0..0..2..2..2..0..0..0..2..2
%e ..2..1..0..0..2..1..0..1..1..0....1..0..1..1..2..1..1..0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 25 2011
| 