1: (0 3 9)

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

2: (5 9 10)

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

3: (2 18 4)

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

4: (3 13 9)

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