%I #3 Mar 11 2013 06:46:34
%S 81,867,35845,703848,19187708,342820859,6895486778,107560020020,
%T 1764791619523
%N Number of nX4 0..2 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope
%C Column 4 of A222996
%e Some solutions for n=3
%e ..1..1..2..0....2..0..0..1....1..2..2..2....1..1..0..0....2..2..2..0
%e ..2..2..0..2....0..1..2..2....1..0..1..2....0..1..1..1....0..1..2..1
%e ..0..1..2..0....0..0..1..2....0..1..1..2....0..2..1..2....0..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 11 2013