1: (4 9 15)

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

2: (8 18 10)

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

3: (4 9 15)

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

4: (14 20 17)

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