1: (1 9 19)

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

2: (8 20 18)

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

3: (1 9 19)

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

4: (0 17 3)

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