17 ≤ C(22,10,3) ≤ 19
Method of Construction: simple construction: induced on c(23,11,4) covering
Lower Bound: Horsley-Singh, Theorem 18a, s=1
3 7 8 9 13 14 15 19 20 21
4 7 8 10 13 14 16 19 20 22
2 5 7 8 11 13 14 17 19 20
1 2 3 4 5 6 19 20 21 22
3 4 5 6 13 14 15 16 17 18
3 4 5 6 7 8 9 10 11 12
1 6 7 8 12 13 14 18 19 20
1 6 9 10 11 15 16 17 19 20
2 5 9 10 12 15 16 18 19 20
4 9 11 12 15 17 18 19 20 22
3 10 11 12 16 17 18 19 20 21
2 6 9 10 11 13 14 18 21 22
1 5 9 10 12 13 14 17 21 22
1 2 3 7 8 9 16 17 18 22
1 2 4 7 8 10 15 17 18 21
1 5 7 8 11 15 16 18 21 22
2 6 7 8 12 15 16 17 21 22
1 2 4 9 11 12 13 14 16 21
1 2 3 10 11 12 13 14 15 22