1: (0 1 8)

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

2: (3 8 21)

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

3: (2 16 4)

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

4: (1 20 8)

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