1: (0 1 5)

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

2: (3 5 18)

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

3: (2 8 4)

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

4: (1 9 5)

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