1: (1 5 8)

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

2: (4 16 6)

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

3: (7 18 9)

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

4: (3 10 8)

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