1: (1 9 12)

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

2: (8 13 11)

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

3: (6 14 12)

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

4: (5 10 7)

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