1: (1 10 16)

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

2: (8 17 12)

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

3: (1 10 16)

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

4: (6 11 9)

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