1: (6 9 12)

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

2: (3 9 7)

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

3: (8 16 10)

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

4: (11 17 13)

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