1: (0 10 15)

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

2: (8 16 13)

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

3: (7 17 15)

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

4: (12 16 14)

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