1: (5 10 13)

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

2: (7 15 12)

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

3: (6 10 14)

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

4: (9 17 11)

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