1: (0 3 13)

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

2: (2 20 8)

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

3: (4 17 19)

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

4: (8 18 16)

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