C(30,8,2) = 19

Created by: LJCR

Method of Construction: Multiple of (15,4,2) covering

Lower Bound: Schonheim

  1  2  8 15 16 17 23 30
  1  3  7 11 16 18 22 26
  1  4 10 12 16 19 25 27
  1  5 13 14 16 20 28 29
  1  6  8  9 16 21 23 24
  2  3  4  5 17 18 19 20
  2  6 10 13 17 21 25 28
  2  7 12 14 17 22 27 29
  2  9 11 13 17 24 26 28
  3  6 14 15 18 21 29 30
  3  8 12 13 18 23 27 28
  3  9 10 14 18 24 25 29
  4  6  7  9 19 21 22 24
  4  7 13 15 19 22 28 30
  4  8 11 14 19 23 26 29
  5  6 11 12 20 21 26 27
  5  7  8 10 20 22 23 25
  5  9 12 15 20 24 27 30
  9 10 11 15 24 25 26 30