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