1: (0 1 8)

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

2: (3 8 21)

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

3: (2 17 4)

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

4: (1 20 8)

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