%I
%S 3,54,1116,21334,386495,6621074,108796955,1735753333,27144561576
%N Number of n X n 0..2 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing
%C Diagonal of A223933
%e Some solutions for n=3
%e ..2..1..1....0..1..0....0..2..1....1..0..0....0..0..0....0..0..0....0..0..0
%e ..0..2..2....1..1..2....2..2..2....0..1..0....0..0..2....0..2..2....1..0..0
%e ..0..0..2....1..2..2....2..2..2....0..1..1....1..2..2....1..1..2....1..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 29 2013
