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