19 ≤ C(61,16,2) ≤ 20

Created by: Colin Barker

Method of Construction: Constructed from c(v+1,k,t,t)

Lower Bound: Horsley, Theorem 14a, r=4, d=0

  1  2  3  4  5  6  7  8 32 33 34 35 36 37 38 39
  1  2  3 12 13 20 23 27 31 32 34 43 44 51 54 58
  1  2  5 17 18 19 20 28 31 33 36 48 49 50 51 59
  1  4  7  9 18 19 22 26 32 35 38 40 49 50 53 57
  1  4  8  9 20 21 25 26 31 35 39 40 51 52 56 57
  1  5 10 11 15 20 22 24 31 36 41 42 46 51 53 55
  1  5 15 16 21 24 25 29 32 36 46 47 52 55 56 60
  1  6  7 14 16 20 29 30 31 37 38 45 47 51 60 61
  1  8 10 11 14 17 28 30 32 39 41 42 45 48 59 61
  2  3  9 14 15 24 26 30 33 34 40 45 46 55 57 61
  2  4  5 13 14 22 27 30 33 35 36 44 45 53 58 61
  2  6  8 12 16 22 23 29 33 37 39 43 47 53 54 60
  2  7 10 11 13 21 25 27 33 38 41 42 44 52 56 58
  3  4  6 17 21 22 25 28 34 35 37 48 52 53 56 59
  3  4 10 11 16 18 19 29 34 35 41 42 47 49 50 60
  4  7 12 15 17 23 24 28 35 38 43 46 48 54 55 59
  5  6  9 10 11 12 23 26 36 37 40 41 42 43 54 57
  6  8 13 15 18 19 24 27 37 39 44 46 49 50 55 58
  9 13 16 17 26 27 28 29 40 44 47 48 57 58 59 60
 12 14 18 19 21 23 25 30 43 45 49 50 52 54 56 61