{{1, 0, 0, 1/6, -1/3, 0, 1/3, 0, -1/6, -1/2, 0, -1/20, -1/15, 11/60, 11/60, 
  1/2, -11/60, -1/4, -1/20, 0}, {0, 1, 0, -1/6, -1/6, 0, -1/3, 0, -1/3, 0, 
  -1/2, -1/10, 7/60, 7/60, 7/60, 0, -7/60, 0, 2/5, 0}, 
 {0, 0, 1, -1/3, -1/3, 0, 1/3, 1, -2/3, 0, 0, -1/10, 1/30, 1/30, 1/30, 0, 
  -1/30, 0, -1/10, 1}, {0, 0, 0, 0, 0, 1, 0, 0, 3, 0, 0, -3/10, 1/10, 1/10, 
  1/10, 0, -1/10, 0, -3/10, -2}}
