1: (1 11 16)

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

2: (9 17 15)

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

3: (1 11 16)

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

4: (4 12 10)

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