1: (12 15 19)

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

2: (2 6 15)

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

3: (1 8 3)

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

4: (5 10 7)

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