C(56,24,2) = 7

Created by: LJCR

Method of Construction: Multiple of (14,6,2) covering

Lower Bound: Schonheim

  1  2  3  8  9 10 15 16 17 22 23 24 29 30 31 36 37 38 43 44 45 50 51 52
  1  4  5  8 11 12 15 18 19 22 25 26 29 32 33 36 39 40 43 46 47 50 53 54
  1  6  7  8 13 14 15 20 21 22 27 28 29 34 35 36 41 42 43 48 49 50 55 56
  2  4  6  9 11 13 16 18 20 23 25 27 30 32 34 37 39 41 44 46 48 51 53 55
  2  5  7  9 12 14 16 19 21 23 26 28 30 33 35 37 40 42 44 47 49 51 54 56
  3  4  7 10 11 14 17 18 21 24 25 28 31 32 35 38 39 42 45 46 49 52 53 56
  3  5  6 10 12 13 17 19 20 24 26 27 31 33 34 38 40 41 45 47 48 52 54 55