1: (0 2 7)

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

2: (4 7 21)

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

3: (3 9 5)

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

4: (2 10 7)

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