18 ≤ C(19,13,5) ≤ 21
Method of Construction: dynamic programming covering
Lower Bound: Schonheim
1 2 3 4 5 6 7 8 9 10 11 14 17
1 2 3 4 5 6 7 8 9 10 12 15 18
1 2 3 4 5 6 7 8 9 10 13 16 19
1 2 3 4 5 6 7 8 9 10 11 16 18
1 2 3 4 5 6 7 8 9 10 12 14 19
1 2 3 4 5 6 7 8 9 10 13 15 17
1 2 3 4 5 6 7 8 9 10 11 15 19
1 2 3 4 5 6 7 8 9 10 12 16 17
1 2 3 4 5 6 7 8 9 10 13 14 18
1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 3 4 5 6 7 8 9 10 14 15 16
1 2 3 4 5 6 7 8 9 10 17 18 19
1 2 3 4 11 12 13 14 15 16 17 18 19
1 5 6 7 11 12 13 14 15 16 17 18 19
1 8 9 10 11 12 13 14 15 16 17 18 19
2 3 5 8 11 12 13 14 15 16 17 18 19
2 3 6 9 11 12 13 14 15 16 17 18 19
2 3 7 10 11 12 13 14 15 16 17 18 19
4 5 6 10 11 12 13 14 15 16 17 18 19
4 7 8 9 11 12 13 14 15 16 17 18 19
5 6 8 9 11 12 13 14 15 16 17 18 19