1: (6 8 11)

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

2: (7 15 9)

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

3: (4 12 10)

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

4: (11 19 13)

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