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