1: (0 10 16)

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

2: (7 20 11)

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

3: (3 10 17)

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

4: (1 8 6)

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