C(56,20,2) = 11
Created by: LJCR
Method of Construction: Multiple of (28,10,2) covering
Lower Bound: Bounds for fixed number of blocks
1 2 3 4 5 6 7 8 9 10 29 30 31 32 33 34 35 36 37 38
1 11 12 13 14 15 16 17 18 19 29 39 40 41 42 43 44 45 46 47
1 20 21 22 23 24 25 26 27 28 29 48 49 50 51 52 53 54 55 56
2 3 4 5 11 12 13 20 21 22 30 31 32 33 39 40 41 48 49 50
2 3 4 5 14 15 16 23 24 25 30 31 32 33 42 43 44 51 52 53
2 3 4 5 17 18 19 26 27 28 30 31 32 33 45 46 47 54 55 56
6 7 8 9 11 12 13 23 24 25 34 35 36 37 39 40 41 51 52 53
6 7 8 9 14 15 16 20 21 22 34 35 36 37 42 43 44 48 49 50
6 7 8 9 17 18 19 26 27 28 34 35 36 37 45 46 47 54 55 56
10 11 12 13 14 15 16 26 27 28 38 39 40 41 42 43 44 54 55 56
10 17 18 19 20 21 22 23 24 25 38 45 46 47 48 49 50 51 52 53