1: (1 5 13)

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

2: (4 20 9)

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

3: (7 13 11)

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

4: (6 10 8)

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