C(26,8,2) = 13

Created by: LJCR

Method of Construction: Multiple of (13,4,2) covering

Lower Bound: Schonheim

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