1: (0 4 10)

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

2: (7 12 19)

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

3: (2 20 17)

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

4: (3 8 6)

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