1: (2 5 16)

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

2: (0 7 3)

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

3: (4 10 6)

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

4: (2 8 11)

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