C(56,23,2) = 9

Created by: LJCR

Method of Construction: Simple construction from (57,23,2)

Lower Bound: Schonheim

  1  2 13 14 16 19 21 23 24 25 26 27 36 37 38 41 42 45 46 47 48 51 54
  1  3  8  9 10 12 14 16 17 22 26 29 34 35 36 37 39 40 44 48 53 54 55
  1  4  5  6  7 11 14 16 17 18 26 28 30 31 32 33 36 37 45 48 52 54 56
  1  6 11 15 17 18 20 21 22 23 26 29 33 37 38 39 41 43 48 49 50 51 55
  2  3  5  6  8 11 12 17 22 25 27 28 29 31 33 39 42 44 46 47 52 55 56
  2  4  7  9 10 15 18 20 25 27 30 32 34 35 36 40 42 43 46 47 49 50 53
  3  4  7  8 12 13 17 18 19 21 22 23 24 29 30 32 38 39 41 44 45 51 55
  3  5  8 12 13 14 15 16 19 20 24 28 30 31 36 43 44 45 49 50 52 54 56
  5  6  9 10 11 13 19 21 23 24 28 31 33 34 35 38 40 41 45 51 52 53 56