1: (2 8 16)

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

2: (1 15 5)

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

3: (4 9 7)

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

4: (0 10 8)

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