1: (2 6 11)

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

2: (5 12 8)

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

3: (2 6 11)

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

4: (1 9 3)

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