1: (1 11 18)

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

2: (0 16 3)

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

3: (1 11 18)

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

4: (14 19 17)

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