1: (0 2 6)

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

2: (1 7 3)

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

3: (2 6 16)

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

4: (6 16 21)

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