1: (1 5 9)

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

2: (4 15 7)

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

3: (1 18 10)

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

4: (13 19 16)

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