1: (3 8 16)

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

2: (1 10 5)

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

3: (0 15 2)

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

4: (3 13 7)

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