1: (0 1 16)

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

2: (4 16 21)

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

3: (2 18 7)

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

4: (15 19 17)

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