1: (7 15 18)

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

2: (9 20 17)

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

3: (14 19 16)

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

4: (1 18 13)

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