1: (1 6 16)

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

2: (0 7 3)

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

3: (6 18 8)

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

4: (9 19 17)

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