C(69,23,2) = 13

Created by: LJCR

Method of Construction: Simple construction from (68,22,2)

Lower Bound: Bounds for fixed number of blocks

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