%I #5 Dec 18 2015 18:18:25
%S 1,4,92,9107,4983598,10344276279
%N Equals two maps: number of n X n binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 n X n array
%C Diagonal of A221290
%e Some solutions for n=3
%e ..0..0..0....0..0..1....0..1..0....0..0..0....0..0..1....0..1..1....0..0..1
%e ..1..1..0....1..0..1....0..1..0....1..0..1....0..1..0....0..1..1....1..0..1
%e ..1..1..0....1..1..0....1..1..0....1..0..0....1..1..0....0..1..0....1..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 09 2013