1: (0 1 9)

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

2: (1 17 19)

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

3: (12 20 18)

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

4: (9 21 19)

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