1: (2 7 13)

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

2: (1 9 3)

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

3: (2 7 13)

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

4: (5 11 8)

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