18 ≤ C(27,12,3) ≤ 22

Created by: Andrei Ochmat

Lower Bound: Schonheim

  5 10 11 12 13 15 17 19 20 22 23 24
  3  4  5  6  9 12 13 14 15 16 22 26
  4  5  7  9 14 18 19 20 21 22 26 27
  2  7  9 11 15 16 20 21 24 25 26 27
  3  5  7 10 11 12 17 18 21 22 24 25
  6  7  8  9 11 12 20 21 23 24 25 26
  3  8  9 11 13 16 18 19 23 24 26 27
  3  4  7  8 10 12 14 15 16 17 19 21
  1  2  3  7  9 10 13 16 17 20 21 26
  5  6  8 10 11 13 16 17 20 22 24 27
  3  4  5  8  9 13 14 22 23 25 26 27
  1  2  8  9 10 15 17 18 19 23 25 26
  1  2  3  4 11 12 14 16 20 23 24 27
  4 10 12 13 14 15 16 17 18 20 23 25
  1  2  6  9 10 12 17 18 19 25 26 27
  1  2  3  5  6  8 15 16 19 20 22 25
  1  2  4  5  9 10 11 14 17 22 24 26
  3  4  6  7 10 14 15 17 19 21 23 27
  1  2  3  4  6  8 11 14 15 18 20 24
  1  2  5  6  7 13 16 18 19 21 22 23
  1  2  4  6  7 11 13 14 19 21 24 25
  1  2  5  7  8 12 13 15 18 21 22 27