C(26,14,2) = 6

Method of Construction: lexicographic greedy covering

Lower Bound: Bounds for fixed number of blocks

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