1: (1 4 15)

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

2: (0 8 2)

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

3: (3 10 5)

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

4: (4 20 7)

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