1: (0 9 16)

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

2: (7 18 12)

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

3: (10 17 15)

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

4: (11 19 13)

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