1: (7 10 15)

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

2: (9 17 11)

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

3: (7 10 15)

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

4: (13 19 16)

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