1: (1 9 16)

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

2: (8 17 15)

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

3: (7 19 16)

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

4: (5 20 18)

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