1: (2 6 9)

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

2: (5 14 7)

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

3: (2 15 11)

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

4: (1 10 8)

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