1: (1 4 8)

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

2: (3 12 5)

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

3: (7 14 9)

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

4: (11 16 13)

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