1: (0 1 5)

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

2: (5 17 20)

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

3: (16 21 19)

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

4: (2 18 10)

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