1: (3 10 12)

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

2: (9 13 11)

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

3: (5 14 12)

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

4: (2 8 4)

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