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