1: (2 5 8)

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

2: (3 13 6)

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

3: (1 9 7)

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

4: (2 12 4)

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