C(21,16,5) = 12
Method of Construction: simple construction: added element to c(v-1,k-1,t) covering
Lower Bound: Sidorenko; 1996
2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 21
2 3 4 5 6 7 8 9 10 11 13 15 16 18 19 21
2 3 4 5 6 7 8 9 10 11 12 16 17 19 20 21
1 2 3 4 5 6 7 8 9 10 11 12 14 16 19 21
1 2 3 4 5 6 7 8 9 10 11 13 15 17 20 21
1 2 3 4 5 6 7 8 9 10 11 14 17 18 20 21
1 3 6 7 10 11 12 13 14 15 16 17 18 19 20 21
1 2 5 6 7 9 12 13 14 15 16 17 18 19 20 21
1 2 4 7 8 10 12 13 14 15 16 17 18 19 20 21
1 3 4 5 9 10 12 13 14 15 16 17 18 19 20 21
1 4 6 8 9 11 12 13 14 15 16 17 18 19 20 21
1 2 3 5 8 11 12 13 14 15 16 17 18 19 20 21