1: (6 9 12)

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

2: (3 10 7)

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

3: (4 13 11)

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

4: (6 16 8)

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