1: (3 7 10)

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

2: (1 7 5)

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

3: (6 12 8)

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

4: (9 14 11)

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