1: (0 1 5)

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

2: (2 5 18)

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

3: (3 21 9)

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

4: (4 14 6)

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