1: (6 9 12)

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

2: (4 10 7)

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

3: (8 15 11)

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

4: (1 12 5)

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