1: (0 2 7)

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

2: (1 9 6)

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

3: (4 7 21)

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

4: (3 12 5)

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