1: (1 9 18)

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

2: (4 20 17)

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

3: (1 9 18)

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

4: (0 6 2)

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