1: (0 8 15)

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

2: (7 16 13)

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

3: (5 17 15)

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

4: (10 16 14)

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