C(22,14,2) = 4

Created by: LJCR

Method of Construction: Multiple of (11,7,2) covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7 12 13 14 15 16 17 18
  1  2  3  8  9 10 11 12 13 14 19 20 21 22
  1  2  4  5  6  7 11 12 13 15 16 17 18 22
  4  5  6  7  8  9 10 15 16 17 18 19 20 21