1: (0 2 5)

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

2: (1 7 3)

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

3: (2 15 17)

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

4: (14 18 16)

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