1: (5 8 12)

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

2: (3 8 6)

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

3: (7 13 9)

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

4: (1 12 6)

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