1: (0 4 8)

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

2: (3 10 5)

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

3: (2 19 8)

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

4: (1 20 18)

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