1: (1 7 13)

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

2: (0 10 2)

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

3: (1 7 13)

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

4: (6 12 9)

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