1: (0 1 4)

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

2: (2 4 9)

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

3: (3 21 7)

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

4: (5 11 8)

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