1: (0 1 7)

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

2: (1 7 9)

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

3: (5 11 8)

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

4: (7 9 21)

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