1: (0 1 2)

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

2: (7 17 19)

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

3: (15 20 18)

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

4: (3 19 11)

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