1: (6 8 11)

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

2: (3 8 12)

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

3: (7 14 9)

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

4: (10 16 13)

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