1: (1 4 6)

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

2: (4 8 18)

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

3: (0 12 2)

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

4: (7 13 10)

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