1: (0 3 6)

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

2: (1 7 5)

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

3: (2 19 4)

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

4: (6 18 21)

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