0: [0, 1, 4]; [[0, 2, 1], [0, 3, 2], [0, 4, 3], [1, 5, 4], [1, 2, 5], [2, 3, 5], [3, 4, 5]]; ['-1.00000000000000000', '-0.00000000000000000', '-0.00000000000000000', '1.000000000000000000', '-0.42857142857142857', '0.285714285714285714', '0.285714285714285714', '0.142857142857142857', '1.000000000000000000', '-0.00000000000000000', '0.142857142857142857', '0.571428571428571428']; [x + 1, x, x, x - 1, x + 3/7, x - 2/7, x - 2/7, x - 1/7, x - 1, x, x - 1/7, x - 4/7]