12 ≤ C(28,15,3) ≤ 13

Created by: Jan de Heer and Rade Belic

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 15 16 21 22 27
  1  2  3  4  5  6  7  8 11 12 17 18 23 24 27
  1  2  3  4  5  6  7  8 13 14 19 20 25 26 28
  1  2  3  4  8 11 13 14 15 19 22 24 25 27 28
  1  2  3  4  9 10 11 13 16 20 21 24 25 26 28
  1  2  3  4  9 10 12 14 16 17 18 19 21 23 28
  1  2  3  4 12 13 15 17 18 20 22 23 25 26 27
  5  6  7  8  9 10 11 14 15 16 19 21 24 26 28
  5  6  7  9 10 13 14 16 20 21 22 24 25 27 28
  5  6  7  9 11 12 13 14 15 17 18 20 23 25 28
  5  6  7 10 11 12 16 17 18 19 21 22 23 26 27
  8  9 10 12 13 15 16 17 18 19 20 21 23 24 25
  8  9 11 12 14 17 18 19 20 22 23 24 26 27 28