1: (6 8 16)

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

2: (5 11 7)

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

3: (1 16 20)

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

4: (0 17 3)

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