{{1, 0, 0, 1/2, 1/2, 0, -1/2, 0, -3/2, -1/2, 0, 1/8, -1/8, -1/8, 0, 1/2, 1}, 
 {0, 1, 0, 0, 1/2, 0, 0, -1/2, -3/2, 0, -1/2, 1/8, 1/8, -1/8, 1/2, 0, 1}, 
 {0, 0, 1, 1, 1, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 2}, 
 {0, 0, 0, 0, 0, 1, 0, 0, 3, 0, 0, -1/4, -1/4, -1/4, 0, 0, -2}}
