15 ≤ C(34,10,2) ≤ 16

Created by: LJCR

Method of Construction: Multiple of (17,5,2) covering

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

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