1: (0 1 4)

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

2: (4 18 20)

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

3: (15 21 19)

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

4: (1 20 10)

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