14 ≤ C(28,18,4) ≤ 16
Created by: LJCR
Method of Construction: Multiple of (14,9,4) covering
Lower Bound: Schonheim
1 2 3 4 5 6 7 8 9 15 16 17 18 19 20 21 22 23
1 2 3 4 5 6 7 10 11 15 16 17 18 19 20 21 24 25
1 2 3 4 5 8 9 10 11 15 16 17 18 19 22 23 24 25
1 2 3 5 6 8 12 13 14 15 16 17 19 20 22 26 27 28
1 2 3 6 7 8 9 10 11 15 16 17 20 21 22 23 24 25
1 2 4 5 7 11 12 13 14 15 16 18 19 21 25 26 27 28
1 2 4 8 9 10 12 13 14 15 16 18 22 23 24 26 27 28
1 3 4 6 10 11 12 13 14 15 17 18 20 24 25 26 27 28
1 3 7 8 9 11 12 13 14 15 17 21 22 23 25 26 27 28
1 4 5 6 7 8 9 10 11 15 18 19 20 21 22 23 24 25
1 5 6 7 9 10 12 13 14 15 19 20 21 23 24 26 27 28
2 3 4 6 7 9 12 13 14 16 17 18 20 21 23 26 27 28
2 3 5 9 10 11 12 13 14 16 17 19 23 24 25 26 27 28
2 6 7 8 10 11 12 13 14 16 20 21 22 24 25 26 27 28
3 4 5 7 8 10 12 13 14 17 18 19 21 22 24 26 27 28
4 5 6 8 9 11 12 13 14 18 19 20 22 23 25 26 27 28