t designs with t=6, v=21
6-(21,9, 140)
delta lambda = 35, lambda_max=455
6-(21,10,lambda) for lambda in { 315, 525, 630} (3 parameter sets) delta lambda = 105, lambda_max=1365
6-(21,11,lambda) for lambda in { 693, 1155, 1386} (3 parameter sets) delta lambda = 231, lambda_max=3003
created: Fri Oct 23 11:03:51 CEST 2009