%I
%S 4,94,2095,39780,722126,12480964,209958887,3466406061
%N Equals two maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and vertical neighbors in a random 0..2 nX4 array
%C Column 4 of A220375
%e Some solutions for n=3
%e ..0..1..1..1....0..0..1..1....0..0..0..0....1..0..0..1....0..0..0..0
%e ..0..1..0..1....1..1..1..0....1..0..1..0....0..0..0..1....1..1..1..1
%e ..0..0..1..1....0..0..0..0....1..0..1..1....1..0..1..0....0..1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 13 2012
