1: (1 4 11)

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

2: (0 7 2)

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

3: (3 18 5)

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

4: (4 12 6)

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