1: (3 9 16)

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

2: (6 18 11)

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

3: (5 10 8)

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

4: (2 16 14)

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