C(42,14,2) = 13

Created by: LJCR

Method of Construction: Multiple of (21,7,2) covering

Lower Bound: Bounds for fixed number of blocks

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