1: (2 10 16)

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

2: (0 15 5)

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

3: (2 14 9)

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

4: (1 7 4)

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