1: (0 3 7)

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

2: (2 8 5)

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

3: (1 18 4)

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

4: (3 10 6)

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