1: (2 8 15)

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

2: (7 17 9)

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

3: (2 8 15)

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

4: (13 18 16)

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