1: (0 1 8)

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

2: (3 8 21)

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

3: (2 19 4)

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

4: (1 20 8)

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