C(51,18,2) = 12

Created by: LJCR

Method of Construction: Multiple of (17,6,2) covering

Lower Bound: Bounds for fixed number of blocks

  1  2  3  4  5  6 18 19 20 21 22 23 35 36 37 38 39 40
  1  4  5 11 12 17 18 21 22 28 29 34 35 38 39 45 46 51
  1  6  7  8 13 16 18 23 24 25 30 33 35 40 41 42 47 50
  1  7  8  9 10 11 18 24 25 26 27 28 35 41 42 43 44 45
  1 12 13 14 15 16 18 29 30 31 32 33 35 46 47 48 49 50
  2  3  4 11 13 16 19 20 21 28 30 33 36 37 38 45 47 50
  2  3  7  8 12 17 19 20 24 25 29 34 36 37 41 42 46 51
  2  3  9 10 14 15 19 20 26 27 31 32 36 37 43 44 48 49
  4  5  7  8 14 15 21 22 24 25 31 32 38 39 41 42 48 49
  4  5  9 10 13 17 21 22 26 27 30 34 38 39 43 44 47 51
  5  6  9 10 12 16 22 23 26 27 29 33 39 40 43 44 46 50
  6 11 14 15 16 17 23 28 31 32 33 34 40 45 48 49 50 51