1: (5 9 15)

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

2: (4 10 8)

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

3: (1 11 9)

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

4: (2 20 12)

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