12 ≤ C(37,20,3) ≤ 13

Created by: Jan de Heer and Steve Muir

Method of Construction: Private tools

Lower Bound: Schonheim

  1  2  3  6  8  9 10 12 13 16 17 18 19 20 24 25 28 29 30 34
  1  2  4  5  9 11 13 15 16 17 18 20 21 23 25 28 30 31 34 35
  1  2  7  9 13 14 16 17 18 22 23 25 26 27 30 32 33 34 36 37
  1  3  4  6  7  8 11 12 16 18 20 22 23 27 28 29 30 32 36 37
  1  3  5  6  8 12 14 15 16 18 20 21 26 28 29 30 31 32 33 35
  1  4  5  6  7 10 11 14 16 18 19 21 22 24 26 27 29 31 33 36
  1  5  7 10 15 16 18 19 21 22 23 24 27 29 30 31 32 35 36 37
  2  3  4  6  8  9 11 12 13 14 15 17 20 23 25 26 33 34 35 37
  2  3  5  7  8  9 11 12 13 17 20 21 22 25 27 28 31 32 34 36
  2  4  6  7  9 10 11 13 15 17 19 22 24 25 27 29 32 34 35 36
  2  5  6  9 10 13 14 17 19 21 23 24 25 26 28 29 31 33 34 37
  3  4  5  8 10 11 12 14 19 20 21 23 24 26 28 30 31 32 33 37
  3  5  7  8 10 12 14 15 19 20 22 24 26 27 28 31 33 35 36 37