C(28,5,2) = 40
Created by: Iliya Bluskov
Lower Bound: Schonheim
1 2 3 6 26
1 3 12 17 25
1 4 7 13 28
1 5 8 9 24
1 10 16 18 27
1 11 14 15 20
1 19 21 22 23
2 3 6 16 26
2 4 6 24 26
2 5 15 18 21
2 7 11 12 19
2 8 25 27 28
2 9 17 20 23
2 10 13 14 22
3 4 18 19 20
3 5 8 11 22
3 7 9 14 27
3 9 10 21 28
3 13 15 23 24
4 5 12 23 27
4 8 10 12 15
4 9 11 16 22
4 14 17 21 25
5 6 7 10 17
5 13 16 20 25
5 14 19 26 28
6 8 14 18 23
6 9 15 19 25
6 11 13 21 27
6 12 20 22 28
7 8 20 21 26
7 15 16 23 28
7 18 22 24 25
8 13 16 17 19
9 12 13 18 26
10 11 23 25 26
10 19 20 24 27
11 17 18 24 28
12 14 16 21 24
15 17 22 26 27