1: (1 5 9)

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

2: (4 11 8)

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

3: (3 13 9)

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

4: (10 16 12)

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