1: (10 15 18)

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

2: (2 6 15)

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

3: (5 11 7)

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

4: (1 8 3)

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