C(60,25,2) = 9

Created by: LJCR

Method of Construction: Multiple of (12,5,2) covering

Lower Bound: Bounds for fixed number of blocks

  1  2  4  7  9 13 14 16 19 21 25 26 28 31 33 37 38 40 43 45 49 50 52 55 57
  1  3  4  6 12 13 15 16 18 24 25 27 28 30 36 37 39 40 42 48 49 51 52 54 60
  1  3  7 10 11 13 15 19 22 23 25 27 31 34 35 37 39 43 46 47 49 51 55 58 59
  1  5  6  8 12 13 17 18 20 24 25 29 30 32 36 37 41 42 44 48 49 53 54 56 60
  2  3  5  7  8 14 15 17 19 20 26 27 29 31 32 38 39 41 43 44 50 51 53 55 56
  2  6 10 11 12 14 18 22 23 24 26 30 34 35 36 38 42 46 47 48 50 54 58 59 60
  3  6  7  9 12 15 18 19 21 24 27 30 31 33 36 39 42 43 45 48 51 54 55 57 60
  4  5  8 10 11 16 17 20 22 23 28 29 32 34 35 40 41 44 46 47 52 53 56 58 59
  5  8  9 10 11 17 20 21 22 23 29 32 33 34 35 41 44 45 46 47 53 56 57 58 59