1: (1 2 10)

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

2: (2 6 9)

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

3: (3 11 8)

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

4: (5 13 7)

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