1: (2 10 20)

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

2: (0 18 5)

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

3: (9 19 10)

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

4: (1 17 3)

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