1: (5 10 15)

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

2: (3 12 6)

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

3: (9 14 11)

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

4: (7 10 16)

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