1: (0 1 3)

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

2: (4 16 18)

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

3: (11 19 17)

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

4: (7 20 18)

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