1: (0 1 9)

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

2: (9 12 20)

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

3: (8 14 11)

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

4: (12 21 18)

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