1: (0 10 15)

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

2: (1 20 12)

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

3: (9 13 11)

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

4: (5 10 18)

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