1: (2 6 15)

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

2: (5 18 7)

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

3: (2 6 15)

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

4: (14 20 17)

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