C(40,22,2) = 6

Created by: LJCR

Method of Construction: Multiple of (20,11,2) covering

Lower Bound: Bounds for fixed number of blocks

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