1: (1 3 15)

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

2: (2 19 5)

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

3: (0 15 8)

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

4: (13 20 18)

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