1: (1 4 7)

(0 20 4)(1 18 16 14 11 7 2)(3 8 5)(6 12 9)(10 15 13)(17 21 19)

2: (3 8 5)

(0 20 4)(1 18 16 14 11 7 2)(3)(5)(6 12 9)(8)(10 15 13)(17 21 19)

3: (2 11 7)

(0 20 4)(1 18 16 14 11)(2)(3)(5)(6 12 9)(7)(8)(10 15 13)(17 21 19)

4: (6 12 9)

(0 20 4)(1 18 16 14 11)(2)(3)(5)(6)(7)(8)(9)(10 15 13)(12)(17 21 19)