10 ≤ C(29,20,4) ≤ 11

Created by: Alessandro Jurcovich

Method of Construction: ex 13

Lower Bound: Theorem 4, Todorov, JCTA 1985

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