C(27,17,2) = 4

Created by: LJCR

Method of Construction: Simple construction from (26,16,2)

Lower Bound: Schonheim

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