%I #5 Dec 18 2015 18:18:28
%S 3,31,621,230803,129912903
%N Number of n X n 0..2 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope
%C Diagonal of A222896
%e Some solutions for n=4
%e ..1..0..1..0....2..1..1..0....2..0..0..0....2..1..1..0....2..1..1..0
%e ..0..0..1..0....0..2..0..0....0..2..0..1....0..2..0..1....1..0..2..1
%e ..0..1..1..1....1..1..1..2....0..1..2..1....0..1..0..1....0..1..1..1
%e ..0..0..2..1....0..0..1..2....0..1..1..2....0..2..2..2....0..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 08 2013