1: (0 11 15)

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

2: (9 16 12)

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

3: (8 18 15)

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

4: (10 17 12)

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