C(26,18,3) = 6

Created by: LJCR

Method of Construction: Multiple of (13,9,3) covering

Lower Bound: Bounds for fixed number of blocks

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