1: (3 7 10)

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

2: (7 16 20)

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

3: (6 12 8)

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

4: (2 9 4)

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