19 ≤ C(17,10,4) ≤ 23
Method of Construction: nurmela-ostergard simulated annealing covering
Lower Bound: Schonheim
1 3 4 5 7 8 9 10 11 13
1 2 4 5 6 7 8 9 12 14
1 3 4 5 8 9 10 11 12 15
2 3 4 6 7 8 12 13 14 15
2 4 5 6 7 9 10 12 13 16
3 5 6 8 9 11 12 13 14 16
1 2 3 4 5 6 10 13 15 16
1 5 6 7 8 9 11 14 15 16
2 3 7 9 10 11 12 14 15 16
1 2 7 8 10 11 13 14 15 16
1 2 3 5 8 9 10 12 14 17
1 3 4 6 10 11 12 13 14 17
1 2 5 6 9 11 12 13 15 17
3 4 6 7 9 10 11 14 15 17
2 5 7 8 9 10 13 14 15 17
1 2 3 6 7 8 9 10 16 17
1 2 3 4 7 8 11 12 16 17
2 3 5 6 7 11 12 13 16 17
2 4 5 6 8 10 11 14 16 17
1 4 5 7 9 12 13 14 16 17
2 3 4 8 9 11 13 15 16 17
1 6 7 8 10 12 13 15 16 17
1 3 4 5 7 12 14 15 16 17