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%I #4 Mar 08 2013 19:20:13
%S 3,0,0,0,31,0,0,51,51,0,0,40,621,40,0,0,12,2542,2542,12,0,0,0,2646,
%T 230803,2646,0,0,0,0,0,3219925,3219925,0,0,0,0,0,0,44680819,129912903,
%U 44680819,0,0,0,0,0,0,341380271,6314798902,6314798902,341380271,0,0,0,0
%N T(n,k)=Number of nXk 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 Table starts
%C .3..0....0.........0..........0..........0............0..........0.0.0.0
%C .0.31...51........40.........12..........0............0..........0.0.0
%C .0.51..621......2542.......2646..........0............0..........0.0
%C .0.40.2542....230803....3219925...44680819....341380271.2205404653
%C .0.12.2646...3219925..129912903.6314798902.116002906380
%C .0..0....0..44680819.6314798902
%C .0..0....0.341380271
%C .0..0....0
%C .0..0
%C .0
%H R. H. Hardin, <a href="/A222896/b222896.txt">Table of n, a(n) for n = 1..60</a>
%e Some solutions for n=4 k=4
%e ..2..0..1..0....2..1..0..0....2..1..0..0....1..1..0..0....1..1..1..0
%e ..0..2..2..0....1..0..0..0....2..0..1..0....2..0..0..2....1..0..2..0
%e ..1..0..2..1....0..1..0..1....1..1..1..1....1..0..1..1....0..1..1..2
%e ..0..0..2..1....0..1..1..1....0..2..2..2....0..1..0..2....0..1..2..2
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_ Mar 08 2013
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