1: (1 9 11)

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

2: (8 13 10)

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

3: (7 16 11)

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

4: (0 15 2)

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