1: (0 10 18)

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

2: (8 20 17)

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

3: (7 11 9)

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

4: (10 19 14)

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