1: (1 7 11)

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

2: (6 17 8)

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

3: (2 18 13)

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

4: (5 9 7)

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