1: (0 1 2)

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

2: (1 14 19)

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

3: (9 20 18)

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

4: (7 21 19)

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