1: (3 6 8)

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

2: (5 18 7)

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

3: (3 6 8)

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

4: (1 10 4)

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