Design No 1 Group Size 21 D55FAD86 FC354DFF
Group generators
Treatments are numbered first (invariants LAST therein), then blocks, then sub-blocks, if applicable, then replicates, if applicable
[[1,2,4],[3,6,5],[8,14,12],[10,11,13],[16,17,19],[18,21,20]],
[[0,1,2,3,4,5,6],[8,9,10,11,12,13,14],[15,16,17,18,19,20,21]]
Block Intersection Formula 
{(1)^3 (2)^9 (3)^1 (4)^1 }^14 
Initial Blocks, modulo 7:
1000 0 1 3 
0 1 2 4 

Design No 2 Group Size 1344 1A4D3823 4D9794C2
Group generators
Treatments are numbered first (invariants LAST therein), then blocks, then sub-blocks, if applicable, then replicates, if applicable
[[3,4],[6,7],[8,21],[9,16],[10,19],[12,20]],
[[3,6],[4,7],[8,21],[10,19],[13,18],[14,17]],
[[2,3],[5,7],[8,15],[9,18],[11,19],[14,20]],
[[1,2],[4,7],[8,17],[10,18],[13,19],[14,21]],
[[0,1],[4,6],[9,14],[12,13],[16,17],[18,20]]
Block Intersection Formula 
{(0)^1 (2)^12 (4)^1 }^14 
Initial Blocks, modulo 7:
1000 0 1 3 
0 1 2 5