1: (9 11 15)

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

2: (2 7 15)

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

3: (6 12 10)

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

4: (0 8 5)

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