1: (1 4 9)

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

2: (3 11 7)

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

3: (0 6 2)

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

4: (1 5 17)

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