{{1, 0, -1, 0, 0, 0, 0, -3, 0, 2, 4, 0, -1, 0, -1/2, 1/2, 0, -1/2, -1/2, 0, 
  0, 0, 1/2, 0, 0, -1, 0, 0, 0, 1/2}, {0, 1, 0, 1, 1/3, -1/3, 1/3, 0, -3, -2, 
  0, 1, 0, -1/6, 0, 0, 1/2, 0, 0, 1/6, -2/3, -1/6, -1/3, 1/2, 4/3, 1/6, 1/6, 
  1/6, -2/3, 0}}
