1: (0 3 12)

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

2: (2 21 7)

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

3: (4 12 13)

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

4: (1 5 17)

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