C(18,14,6) = 15

Method of Construction: dynamic programming covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11 12 13 14
  1  2  3  4  5  6  7  8  9 10 11 12 15 16
  1  2  3  4  5  6  7  8  9 10 11 12 17 18
  1  2  3  4  5  6  7  8  9 10 11 13 15 17
  1  2  3  4  5  6  7  8  9 10 11 13 16 18
  1  2  3  4  5  6  7  8  9 10 11 14 15 18
  1  2  3  4  5  6  7  8  9 10 11 14 16 17
  1  2  3  4  5  6  7 12 13 14 15 16 17 18
  1  2  3  4  5  6  8 12 13 14 15 16 17 18
  1  2  3  4  5  6  9 12 13 14 15 16 17 18
  1  2  3  4  5  6 10 12 13 14 15 16 17 18
  1  2  3  4  5  6 11 12 13 14 15 16 17 18
  1  2  7  8  9 10 11 12 13 14 15 16 17 18
  3  4  7  8  9 10 11 12 13 14 15 16 17 18
  5  6  7  8  9 10 11 12 13 14 15 16 17 18