1: (0 8 15)

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

2: (1 20 10)

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

3: (0 8 15)

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

4: (9 16 13)

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