C(17,6,2) = 12

Method of Construction: lex covering

Lower Bound: Schonheim

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