C(23,19,6) = 10

Created by: LJCR

Method of Construction: Simple construction from (22,18,6)

Lower Bound: Mills, Covering Designs I, 1979

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