1: (0 1 2)

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

2: (2 7 15)

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

3: (6 18 13)

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

4: (1 15 5)

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