1: (0 1 16)

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

2: (3 16 21)

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

3: (2 18 9)

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

4: (15 19 17)

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