{{1, 0, -1/3, -1/3, 1/3, 1/3, 0, -5/6, 0, -1/2, 0, 0, 0, 1/6, 0, 0, 0, 1/6, 
  0, 0}, {0, 1, 1/3, 0, -1/3, -1/3, 1, 0, -5/6, 1/2, 1/2, -7/3, 1/4, 1/4, 
  5/12, 5/12, -5/12, -1/6, 1/4, 7/6}}
