1: (0 1 4)

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

2: (2 4 18)

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

3: (3 21 5)

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

4: (1 20 8)

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