C(31,20,3) = 8

Created by: LJCR

Method of Construction: Simple construction from (32,20,3)

Lower Bound: Bounds for fixed number of blocks

  1  2  3  4  6  9 10 11 12 14 17 18 19 20 22 25 26 27 28 30
  1  2  3  5  8  9 10 11 13 16 17 18 19 20 21 24 25 26 27 29
  1  2  4  5  7  8  9 10 12 15 16 17 18 20 23 24 25 26 28 31
  1  3  6  7  8  9 11 14 15 16 17 19 20 22 23 24 25 27 30 31
  1  4  5  6  7  9 12 13 14 15 17 20 21 22 23 25 28 29 30 31
  2  3  4  5  7 10 11 12 13 15 18 19 20 21 23 26 27 28 29 31
  2  5  6  7  8 10 13 14 15 16 18 21 22 23 24 26 27 29 30 31
  3  4  5  6  8 11 12 13 14 16 19 20 21 22 23 24 27 28 29 30