1: (0 11 16)

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

2: (15 16 18)

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

3: (8 19 17)

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

4: (6 12 9)

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