1: (0 1 15)

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

2: (4 15 21)

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

3: (2 18 9)

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

4: (6 16 14)

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