1: (0 9 17)

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

2: (15 17 21)

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

3: (13 18 16)

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

4: (9 19 17)

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