1: (0 4 7)

(0 5 3)(1 15 6 4 20 7 2)(8 19 17)(9 13 11)(10 18 16)(12 21 14)

2: (1 15 6)

(0 5 3)(1 4 20 7 2)(6)(8 19 17)(9 13 11)(10 18 16)(12 21 14)(15)

3: (0 5 3)

(0)(1 4 20 7 2)(3)(5)(6)(8 19 17)(9 13 11)(10 18 16)(12 21 14)(15)

4: (2 20 7)

(0)(1 4 20)(2)(3)(5)(6)(7)(8 19 17)(9 13 11)(10 18 16)(12 21 14)(15)