C(70,25,2) = 12

Created by: LJCR

Method of Construction: Multiple of (14,5,2) covering

Lower Bound: Bounds for fixed number of blocks

  1  2  3  4  5 15 16 17 18 19 29 30 31 32 33 43 44 45 46 47 57 58 59 60 61
  1  2  7  8 10 15 16 21 22 24 29 30 35 36 38 43 44 49 50 52 57 58 63 64 66
  1  6  7  8  9 15 20 21 22 23 29 34 35 36 37 43 48 49 50 51 57 62 63 64 65
  1  7  9 13 14 15 21 23 27 28 29 35 37 41 42 43 49 51 55 56 57 63 65 69 70
  1 10 11 12 13 15 24 25 26 27 29 38 39 40 41 43 52 53 54 55 57 66 67 68 69
  2  3  6 10 14 16 17 20 24 28 30 31 34 38 42 44 45 48 52 56 58 59 62 66 70
  2  3  7  8 12 16 17 21 22 26 30 31 35 36 40 44 45 49 50 54 58 59 63 64 68
  2  3  9 11 13 16 17 23 25 27 30 31 37 39 41 44 45 51 53 55 58 59 65 67 69
  4  5  6  8 13 18 19 20 22 27 32 33 34 36 41 46 47 48 50 55 60 61 62 64 69
  4  5  7 11 14 18 19 21 25 28 32 33 35 39 42 46 47 49 53 56 60 61 63 67 70
  4  5  9 10 12 18 19 23 24 26 32 33 37 38 40 46 47 51 52 54 60 61 65 66 68
  6  8 11 12 14 20 22 25 26 28 34 36 39 40 42 48 50 53 54 56 62 64 67 68 70