1: (7 15 18)

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

2: (13 20 17)

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

3: (7 15 18)

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

4: (9 16 14)

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