1: (6 15 18)

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

2: (9 19 17)

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

3: (14 20 16)

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

4: (5 18 13)

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