1: (7 8 16)

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

2: (2 4 8)

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

3: (0 5 3)

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

4: (4 16 6)

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