1: (2 6 12)

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

2: (1 8 3)

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

3: (7 13 11)

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

4: (2 16 4)

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