18 ≤ C(16,11,5) ≤ 22

Method of Construction: dynamic programming covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11
  1  2  3  4  5  6  7  8  9 12 13
  1  2  3  4  5  6  7  8  9 14 15
  1  2  3  4  5  6  7  8 10 12 14
  1  2  3  4  5  6  7  8 10 13 15
  1  2  3  4  5  6  7  8 11 12 15
  1  2  3  4  5  6  7  8 11 13 14
  1  2  3  4  5  6  7  8  9 10 16
  1  2  3  4  5  6  7  8 11 12 16
  1  2  3  4  5  6  7  8 13 14 16
  1  2  3  4  5  6  7  8  9 15 16
  1  2  3  9 10 11 12 13 14 15 16
  1  4  5  9 10 11 12 13 14 15 16
  1  6  7  9 10 11 12 13 14 15 16
  2  4  6  9 10 11 12 13 14 15 16
  2  5  7  9 10 11 12 13 14 15 16
  3  4  7  9 10 11 12 13 14 15 16
  3  5  6  9 10 11 12 13 14 15 16
  1  2  8  9 10 11 12 13 14 15 16
  3  4  8  9 10 11 12 13 14 15 16
  5  6  8  9 10 11 12 13 14 15 16
  1  7  8  9 10 11 12 13 14 15 16