C(19,15,7) = 19

Method of Construction: dynamic programming covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
  1  2  3  4  5  6  7  8  9 10 11 12 13 16 17
  1  2  3  4  5  6  7  8  9 10 11 12 13 18 19
  1  2  3  4  5  6  7  8  9 10 11 12 14 16 18
  1  2  3  4  5  6  7  8  9 10 11 12 14 17 19
  1  2  3  4  5  6  7  8  9 10 11 12 15 16 19
  1  2  3  4  5  6  7  8  9 10 11 12 15 17 18
  1  2  3  4  5  6  7  8 13 14 15 16 17 18 19
  1  2  3  4  5  6  7  9 13 14 15 16 17 18 19
  1  2  3  4  5  6  7 10 13 14 15 16 17 18 19
  1  2  3  4  5  6  7 11 13 14 15 16 17 18 19
  1  2  3  4  5  6  7 12 13 14 15 16 17 18 19
  1  2  3  8  9 10 11 12 13 14 15 16 17 18 19
  1  4  5  8  9 10 11 12 13 14 15 16 17 18 19
  1  6  7  8  9 10 11 12 13 14 15 16 17 18 19
  2  4  6  8  9 10 11 12 13 14 15 16 17 18 19
  2  5  7  8  9 10 11 12 13 14 15 16 17 18 19
  3  4  7  8  9 10 11 12 13 14 15 16 17 18 19
  3  5  6  8  9 10 11 12 13 14 15 16 17 18 19