1: (1 10 15)

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

2: (9 17 11)

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

3: (1 10 15)

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

4: (13 18 16)

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