1: (0 10 18)

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

2: (8 20 17)

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

3: (7 11 9)

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

4: (8 21 18)

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