1: (9 12 15)

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

2: (10 18 13)

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

3: (14 20 16)

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

4: (0 12 17)

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