1: (4 7 15)

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

2: (1 8 6)

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

3: (3 11 5)

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

4: (2 14 7)

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