1: (4 8 12)

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

2: (6 16 9)

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

3: (3 7 5)

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

4: (2 10 8)

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