1: (4 8 15)

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

2: (7 17 9)

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

3: (4 8 15)

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

4: (13 18 16)

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