C(18,13,5) = 15
Method of Construction: dynamic programming covering
Lower Bound: Sidorenko; 1996
1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 3 4 5 6 7 8 9 10 11 14 15
1 2 3 4 5 6 7 8 9 10 11 16 17
1 2 3 4 5 6 7 8 9 10 11 15 18
2 3 4 6 7 9 12 13 14 15 16 17 18
3 4 5 7 8 10 12 13 14 15 16 17 18
4 5 6 8 9 11 12 13 14 15 16 17 18
1 5 6 7 9 10 12 13 14 15 16 17 18
2 6 7 8 10 11 12 13 14 15 16 17 18
1 3 7 8 9 11 12 13 14 15 16 17 18
1 2 4 8 9 10 12 13 14 15 16 17 18
2 3 5 9 10 11 12 13 14 15 16 17 18
1 3 4 6 10 11 12 13 14 15 16 17 18
1 2 4 5 7 11 12 13 14 15 16 17 18
1 2 3 5 6 8 12 13 14 15 16 17 18