1: (4 9 11)

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

2: (5 12 10)

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

3: (11 15 19)

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

4: (14 20 16)

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