1: (2 5 20)

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

2: (0 7 3)

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

3: (2 5 20)

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

4: (4 9 6)

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