1: (0 9 18)

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

2: (2 19 17)

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

3: (1 20 4)

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

4: (0 16 8)

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