t designs with t=4, v=15
4-(15,5, 2) 
delta lambda = 1, lambda_max=11
4-(15,7,lambda) for lambda in { 
20,
 
25, 
30, 
35, 
40, 
45, 
50, 
55, 
60, 
65, 
70,
 
75, 
80} (13 parameter sets)
delta lambda = 5, lambda_max=165
created: Fri Oct 23 11:03:08 CEST 2009