C(53,21,2) = 10

Created by: LJCR

Method of Construction: Simple construction from (52,20,2)

Lower Bound: Bounds for fixed number of blocks

  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 53
  1  2  9 10 11 12 17 18 19 20 21 22 23 24 25 26 27 28 29 30 53
  1  2 11 12 17 18 19 20 21 22 31 32 33 34 35 36 37 38 39 40 53
  1  2 11 12 17 18 19 20 41 42 43 44 45 46 47 48 49 50 51 52 53
  3  4  5  6 13 14 15 16 21 22 27 28 33 34 35 36 47 48 51 52 53
  3  4  7  8  9 10 13 14 21 22 29 30 35 36 39 40 45 46 49 50 53
  3  4 13 14 21 22 23 24 25 26 31 32 35 36 37 38 41 42 43 44 53
  5  6  7  8  9 10 15 16 27 28 29 30 33 34 39 40 41 42 43 44 53
  5  6 15 16 23 24 25 26 27 28 31 32 33 34 37 38 45 46 49 50 53
  7  8  9 10 23 24 25 26 29 30 31 32 37 38 39 40 47 48 51 52 53