1: (1 4 16)

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

2: (3 19 5)

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

3: (2 20 18)

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

4: (0 16 8)

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