1: (0 10 15)

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

2: (9 16 13)

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

3: (5 17 15)

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

4: (11 16 14)

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