1: (4 8 13)

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

2: (2 9 7)

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

3: (3 15 5)

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

4: (8 16 10)

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