1: (7 10 16)

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

2: (5 10 8)

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

3: (9 17 11)

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

4: (2 16 8)

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