23 ≤ C(38,9,2) ≤ 25

Created by: Colin Barker

Method of Construction: Simulated Annealing

Lower Bound: Horsley, Theorem 1, r=5, d=3

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