C(11,5,4) = 66
Method of Construction: simple construction: induced on c(12,6,5) covering
Lower Bound: Schonheim
2 5 7 8 10
1 3 6 9 10
2 5 7 9 11
1 3 4 7 11
2 8 9 10 11
3 4 6 10 11
3 4 5 9 11
1 2 3 9 11
4 5 8 10 11
1 4 5 7 8
1 2 5 9 10
1 4 6 7 10
2 4 7 10 11
1 2 4 7 9
1 3 8 10 11
1 7 8 9 10
1 2 7 8 11
1 5 8 9 11
1 3 5 6 11
4 7 8 9 11
1 4 5 6 9
1 5 7 10 11
1 2 4 8 10
4 5 7 9 10
1 4 6 8 11
2 3 4 8 11
2 4 5 8 9
1 2 3 7 10
2 3 4 9 10
1 2 3 4 6
3 4 7 8 10
1 3 6 7 8
1 3 4 5 10
1 2 4 5 11
5 6 7 8 9
2 3 5 6 9
2 6 7 9 10
3 5 6 7 10
1 3 5 7 9
2 5 6 8 11
3 4 5 6 8
1 3 4 8 9
1 2 6 10 11
2 3 6 8 10
1 2 3 5 8
3 7 9 10 11
1 6 7 9 11
6 7 8 10 11
3 4 6 7 9
2 4 6 9 11
5 6 9 10 11
2 3 5 10 11
4 5 6 7 11
2 3 4 5 7
4 6 8 9 10
2 3 6 7 11
1 4 9 10 11
2 3 7 8 9
3 5 7 8 11
3 5 8 9 10
2 4 5 6 10
1 2 5 6 7
1 5 6 8 10
2 4 6 7 8
1 2 6 8 9
3 6 8 9 11