1: (2 7 18)

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

2: (0 16 3)

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

3: (2 7 18)

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

4: (6 17 8)

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