C(27,17,3) = 9

Created by: LJCR

Method of Construction: Simple construction from (26,16,3)

Lower Bound: Todorov, On the covering of triples by eight blocks, 1986

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