C(53,14,2) = 19
Created by: Jan de Heer and Steve Muir
Method of Construction: Private tools
Lower Bound: Horsley, Theorem 14a, r=4, d=0
1 2 10 16 18 19 22 24 32 38 45 46 47 49
1 3 4 5 10 20 24 29 33 37 40 44 48 49
1 6 7 8 10 12 13 17 24 31 34 49 52 53
1 9 10 11 21 24 25 27 28 36 39 41 49 51
1 10 14 15 23 24 26 30 35 40 42 43 49 50
2 3 18 19 21 28 33 36 37 43 47 48 51 52
2 4 6 7 9 18 19 20 23 30 35 39 47 53
2 5 11 17 18 19 25 27 31 40 41 42 44 47
2 8 12 13 14 15 18 19 26 29 34 41 47 50
3 6 7 11 14 15 25 26 27 33 37 48 50 53
3 8 9 12 13 16 22 33 34 37 39 40 42 48
3 17 23 30 31 32 33 35 37 38 41 45 46 48
4 8 11 12 13 20 25 27 32 34 38 43 45 46
4 11 16 20 22 23 25 27 29 30 35 41 42 52
4 14 15 16 17 20 21 22 26 28 31 36 50 51
5 6 7 9 16 17 22 29 31 39 41 43 44 53
5 8 12 13 21 23 28 30 34 35 36 43 44 51
5 9 14 15 26 32 38 39 40 44 45 46 50 52
6 7 21 28 29 32 36 38 40 42 45 46 51 53