C(50,25,2) = 6

Created by: LJCR

Method of Construction: Multiple of (10,5,2) covering

Lower Bound: Schonheim

  1  2  4  5  7 11 12 14 15 17 21 22 24 25 27 31 32 34 35 37 41 42 44 45 47
  1  3  4  6 10 11 13 14 16 20 21 23 24 26 30 31 33 34 36 40 41 43 44 46 50
  1  3  7  8  9 11 13 17 18 19 21 23 27 28 29 31 33 37 38 39 41 43 47 48 49
  2  3  5  6  8 12 13 15 16 18 22 23 25 26 28 32 33 35 36 38 42 43 45 46 48
  2  4  8  9 10 12 14 18 19 20 22 24 28 29 30 32 34 38 39 40 42 44 48 49 50
  5  6  7  9 10 15 16 17 19 20 25 26 27 29 30 35 36 37 39 40 45 46 47 49 50