15 ≤ C(38,11,2) ≤ 17

Created by: Michael Dambmann

Method of Construction: Simulated Annealing

Lower Bound: Horsley, Theorem 11, r=4, d=3

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