1: (1 4 7)

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

2: (4 14 19)

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

3: (0 16 2)

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

4: (15 20 18)

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