C(54,25,2) = 7

Created by: LJCR

Method of Construction: Simple construction from (55,25,2)

Lower Bound: Schonheim

  1  2  3  4 13 16 21 22 23 26 28 29 30 33 36 37 38 41 43 44 45 46 47 50 52
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  1  2  5  6  8  9 11 13 15 18 20 24 25 26 31 33 36 40 43 44 48 50 51 52 53
  3  5  9 10 14 15 16 17 18 21 23 25 27 28 30 31 33 34 35 40 47 48 50 53 54
  3  6  7  8 11 12 13 14 16 19 20 21 23 24 25 28 30 32 33 39 42 47 49 51 52
  4  5  6  7  9 12 18 19 22 25 29 31 32 37 38 39 40 41 42 45 46 48 49 50 53
  4  8 10 11 13 14 15 17 19 20 22 24 27 29 34 35 37 38 41 43 45 46 51 52 54