C(56,19,2) = 12

Created by: Colin Barker

Method of Construction: Simulated Annealing

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19
  1  6  8 11 14 15 16 20 24 26 27 30 34 39 42 45 48 50 53
  1  6  8 11 16 21 24 28 33 36 37 39 40 43 47 49 51 52 56
  1  6  8 11 16 22 23 25 29 31 32 35 38 39 41 44 46 54 55
  2  4 10 12 13 17 20 21 23 26 28 30 32 33 41 45 47 49 52
  2  4 10 12 13 17 22 24 26 35 36 37 38 40 42 44 46 54 56
  2  4 10 12 13 17 24 25 27 29 31 34 39 43 48 50 51 53 55
  3  5  7  9 18 19 20 22 26 30 35 38 39 43 44 45 46 51 54
  3  5  7  9 18 19 21 25 26 28 29 31 33 40 42 47 49 52 55
  3  5  7  9 18 19 23 24 27 32 34 36 37 40 41 48 50 53 56
 14 15 20 23 25 29 30 31 32 36 37 40 41 42 43 45 51 55 56
 14 15 21 22 27 28 33 34 35 38 44 46 47 48 49 50 52 53 54