1: (0 1 16)

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

2: (4 16 21)

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

3: (2 18 10)

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

4: (3 14 5)

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