1: (7 9 15)

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

2: (2 10 8)

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

3: (4 15 13)

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

4: (3 16 5)

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