1: (2 5 8)

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

2: (4 18 6)

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

3: (2 5 8)

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

4: (3 20 9)

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