31 ≤ C(39,8,2) ≤ 32

Created by: Colin Barker

Method of Construction: Simulated annealing

Lower Bound: Horsley, Theorem 1, r=6, d=4

  1  2  6 19 26 33 34 39
  1  3  6 10 12 22 25 29
  1  4  6 11 16 17 23 36
  1  4 10 14 20 21 28 33
  1  5  6  7 14 18 24 31
  1  6  8  9 27 28 32 37
  1  6 13 15 21 30 35 38
  2  3  7 13 22 28 31 36
  2  3 15 16 17 20 25 29
  2  4  7  8 12 18 27 38
  2  5 16 17 18 20 21 32
  2  6  9 10 11 20 24 30
  2 14 15 23 25 29 35 37
  3  4  5 13 24 26 27 37
  3  5 12 18 23 26 28 30
  3  8 19 21 22 23 24 39
  3  9 14 23 27 31 33 38
  3 11 12 20 21 31 34 37
  3 12 15 24 32 33 35 36
  4  5  9 15 18 22 34 35
  4 19 25 29 30 31 32 39
  5  8 11 13 18 25 29 33
  5 10 18 19 36 37 38 39
  7  9 21 25 26 27 29 36
  7 10 13 20 23 27 32 34
  7 11 15 19 27 28 35 39
  7 16 17 22 27 30 33 37
  8 10 15 16 17 26 31 35
  8 14 20 30 34 35 36 39
  9 12 13 14 16 17 19 39
 11 14 19 20 22 26 32 38
 16 17 24 25 28 29 34 38