C(28,22,3) = 4

Created by: LJCR

Method of Construction: Multiple of (14,11,3) covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11 15 16 17 18 19 20 21 22 23 24 25
  1  2  3  4  5  6  7  8 12 13 14 15 16 17 18 19 20 21 22 26 27 28
  1  2  3  4  5  9 10 11 12 13 14 15 16 17 18 19 23 24 25 26 27 28
  1  2  6  7  8  9 10 11 12 13 14 15 16 20 21 22 23 24 25 26 27 28