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%I #5 Dec 18 2015 18:18:25
%S 0,0,8,3706,11678172,326416281638,82293038769560932
%N Number of n X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops
%C Diagonal of A221114
%e Some solutions for n=3
%e ..0..2..0....0..2..1....0..1..0....0..2..1....0..1..1....0..2..1....0..2..1
%e ..1..2..1....1..2..0....1..3..1....1..3..0....0..3..1....1..2..1....0..2..1
%e ..1..2..0....1..2..0....1..2..0....1..1..0....1..2..0....0..2..0....1..2..0
%K nonn
%O 1,3
%A _R. H. Hardin_ Jan 02 2013