15 ≤ C(48,14,2) ≤ 17

Created by: LJCR

Method of Construction: Multiple of (24,7,2) covering

Lower Bound: Horsley, Theorem 11, r=4, d=5

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