15 ≤ C(30,19,4) ≤ 17

Created by: Kamal Fadlaoui

Method of Construction: Tabu Search

Lower Bound: Schonheim

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