1: (7 10 15)

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

2: (5 12 9)

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

3: (3 8 6)

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

4: (1 10 18)

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