1: (8 15 18)

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

2: (14 20 17)

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

3: (8 15 18)

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

4: (7 19 9)

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