1: (1 5 16)

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

2: (4 18 6)

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

3: (15 19 17)

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

4: (2 12 16)

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