%I #5 Dec 18 2015 18:18:32
%S 3,81,6166,738482,111026387,18986502099,3529435151262,698068937559304
%N Number of n X n 0..2 arrays with rows and columns unimodal
%C Diagonal of A223831
%e Some solutions for n=3
%e ..0..2..2....0..1..1....1..2..1....1..1..2....1..2..0....1..2..1....0..2..0
%e ..0..0..0....0..1..1....2..2..2....2..1..0....0..2..2....0..0..0....2..2..0
%e ..1..0..0....0..2..1....0..0..0....2..2..0....0..1..1....0..0..0....1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 27 2013
