1: (0 2 5)

(0)(1 4 3)(2 20 16 13 5 8 6)(7 18 15 11 9)(10 14 12)(17 21 19)

2: (5 8 13)

(0)(1 4 3)(2 20 16 13 6)(5)(7 18 15 11 9)(8)(10 14 12)(17 21 19)

3: (7 18 9)

(0)(1 4 3)(2 20 16 13 6)(5)(7)(8)(9 15 11)(10 14 12)(17 21 19)(18)

4: (2 13 6)

(0)(1 4 3)(2)(5)(6)(7)(8)(9 15 11)(10 14 12)(13 20 16)(17 21 19)(18)