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