1: (1 4 16)

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

2: (3 19 5)

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

3: (15 20 18)

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

4: (2 12 16)

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