C(53,14,2) = 19

Created by: Jan de Heer and Steve Muir

Method of Construction: Private tools

Lower Bound: Schonheim

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