17 ≤ C(33,15,3) ≤ 20

Created by: LJCR

Method of Construction: Multiple of (11,5,3) covering

Lower Bound: Horsley-Singh, Theorem 6, s=1

  1  2  3 10 11 12 13 14 21 22 23 24 25 32 33
  1  2  4  5  7 12 13 15 16 18 23 24 26 27 29
  1  2  4  6  9 12 13 15 17 20 23 24 26 28 31
  1  2  5  6  8 12 13 16 17 19 23 24 27 28 30
  1  3  4  8 10 12 14 15 19 21 23 25 26 30 32
  1  3  5  9 10 12 14 16 20 21 23 25 27 31 32
  1  3  6  7 10 12 14 17 18 21 23 25 28 29 32
  1  4  5  6 11 12 15 16 17 22 23 26 27 28 33
  1  7  8  9 11 12 18 19 20 22 23 29 30 31 33
  2  3  4  5  6 13 14 15 16 17 24 25 26 27 28
  2  3  7  8  9 13 14 18 19 20 24 25 29 30 31
  2  4  8 10 11 13 15 19 21 22 24 26 30 32 33
  2  5  9 10 11 13 16 20 21 22 24 27 31 32 33
  2  6  7 10 11 13 17 18 21 22 24 28 29 32 33
  3  4  7  9 11 14 15 18 20 22 25 26 29 31 33
  3  5  7  8 11 14 16 18 19 22 25 27 29 30 33
  3  6  8  9 11 14 17 19 20 22 25 28 30 31 33
  4  5  8  9 10 15 16 19 20 21 26 27 30 31 32
  4  6  7  8 10 15 17 18 19 21 26 28 29 30 32
  5  6  7  9 10 16 17 18 20 21 27 28 29 31 32