1: (2 6 13)

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

2: (5 17 7)

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

3: (2 6 13)

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

4: (11 18 16)

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