1: (4 6 9)

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

2: (5 20 6)

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

3: (1 10 8)

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

4: (0 18 2)

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