1: (0 2 6)

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

2: (1 15 3)

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

3: (5 18 21)

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

4: (14 19 17)

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