1: (4 7 15)

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

2: (6 18 9)

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

3: (3 11 5)

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

4: (4 8 20)

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