1: (0 5 11)

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

2: (7 11 17)

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

3: (6 15 8)

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

4: (14 18 16)

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