1: (7 8 13)

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

2: (5 10 13)

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

3: (6 14 12)

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

4: (9 16 11)

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