1: (6 11 16)

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

2: (10 18 12)

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

3: (6 11 16)

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

4: (14 20 17)

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