1: (0 2 7)

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

2: (8 16 19)

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

3: (15 20 18)

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

4: (14 21 19)

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