1: (2 9 15)

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

2: (7 16 14)

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

3: (5 10 8)

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

4: (13 18 15)

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