1: (0 7 10)

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

2: (6 11 8)

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

3: (5 13 10)

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

4: (9 15 12)

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