1: (2 6 9)

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

2: (5 20 7)

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

3: (3 10 8)

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

4: (2 13 4)

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