1: (6 15 18)

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

2: (5 17 7)

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

3: (14 20 16)

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

4: (1 18 13)

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