1: (0 5 12)

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

2: (2 18 10)

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

3: (1 6 4)

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

4: (9 20 12)

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