1: (1 4 18)

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

2: (0 5 3)

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

3: (1 4 18)

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

4: (2 20 17)

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