1: (0 7 9)

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

2: (5 10 8)

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

3: (9 13 16)

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

4: (12 18 14)

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