1: (0 3 4)

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

2: (4 7 13)

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

3: (6 18 8)

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

4: (3 13 5)

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