1: (0 9 15)

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

2: (8 16 10)

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

3: (5 18 15)

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

4: (13 19 17)

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