1: (0 1 2)

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

2: (2 7 17)

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

3: (6 19 15)

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

4: (16 20 18)

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