1: (1 5 9)

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

2: (4 15 7)

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

3: (3 17 9)

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

4: (14 19 16)

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