1: (8 13 15)

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

2: (9 17 14)

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

3: (11 18 13)

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

4: (6 12 10)

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