1: (2 6 16)

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

2: (5 18 6)

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

3: (0 10 3)

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

4: (4 20 8)

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