1: (0 1 5)

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

2: (5 17 19)

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

3: (16 21 18)

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

4: (2 20 15)

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