19 ≤ C(15,9,4) ≤ 20
Created by: Felix Rodriguez Martin
Lower Bound: Schonheim
1 2 3 4 6 8 9 11 12
1 2 3 4 6 9 10 14 15
1 2 3 5 6 7 9 10 12
1 2 3 8 10 12 13 14 15
1 2 4 5 8 9 10 14 15
1 2 4 7 9 12 13 14 15
1 2 5 6 11 12 13 14 15
1 2 6 7 8 10 11 14 15
1 3 4 5 6 7 9 11 15
1 3 4 6 9 10 11 13 14
1 3 5 6 7 8 9 13 14
1 4 5 7 8 10 11 12 13
2 3 4 5 8 11 13 14 15
2 3 4 6 7 8 9 10 13
2 3 4 7 10 11 12 14 15
2 4 5 6 7 8 12 14 15
2 5 7 9 10 11 13 14 15
3 4 5 6 9 10 12 13 15
3 5 6 8 9 10 11 12 14
3 6 7 8 9 11 12 13 15