1: (1 7 10)

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

2: (5 12 9)

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

3: (1 8 11)

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

4: (4 13 11)

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