1: (1 5 16)

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

2: (5 9 10)

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

3: (4 20 6)

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

4: (0 18 2)

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