26 ≤ C(46,10,2) ≤ 28

Created by: LJCR

Method of Construction: Multiple of (23,5,2) covering

Lower Bound: Schonheim

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