1: (0 2 15)

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

2: (9 16 19)

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

3: (5 17 13)

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

4: (14 20 18)

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