1: (5 10 17)

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

2: (4 15 8)

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

3: (6 11 9)

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

4: (3 12 10)

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