C(60,19,2) = 13

Created by: LJCR

Method of Construction: Simple construction from (61,19,2)

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19
  1  2  6 12 15 20 23 25 27 29 30 31 42 43 47 49 56 57 60
  1  2  6 12 15 21 22 36 38 39 40 50 51 52 53 54 55 56 59
  1  2  6 12 15 24 26 28 32 33 34 35 37 41 44 45 46 48 58
  3  5 16 18 20 24 25 28 30 36 37 38 46 48 49 50 53 55 58
  3  5 16 18 21 22 26 27 28 29 36 41 44 47 48 51 54 57 60
  3  5 16 18 23 31 32 33 34 35 39 40 42 43 45 50 52 56 59
  4 10 11 13 15 19 27 29 32 33 34 35 38 45 47 53 55 57 60
  4 10 11 13 19 20 25 26 28 30 39 40 41 44 48 49 50 52 59
  4 10 11 13 19 21 22 23 24 31 36 37 42 43 46 51 54 56 58
  7  8  9 10 14 17 23 26 28 31 38 41 42 43 44 48 53 55 56
  7  8  9 14 17 20 21 22 25 30 32 33 34 35 36 45 49 51 54
  7  8  9 14 17 24 27 29 37 39 40 46 47 50 52 57 58 59 60