1: (0 2 9)

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

2: (1 18 4)

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

3: (2 13 6)

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

4: (3 7 5)

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