C(16,7,2) = 8
Method of Construction: simple construction: induced on c(17,8,3) covering
Lower Bound: Handbook of Combinatorial Designs section on coverings
1 2 4 5 8 10 11
1 5 7 8 9 11 13
2 3 7 10 12 13 14
4 6 7 10 13 15 16
1 3 5 6 9 14 15
2 5 6 8 11 12 15
1 2 4 9 10 12 16
3 4 5 8 11 14 16