1: (6 12 17)

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

2: (5 14 7)

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

3: (11 16 13)

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

4: (2 9 12)

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