1: (1 5 8)

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

2: (5 10 20)

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

3: (0 18 2)

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

4: (7 15 9)

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