1: (0 3 8)

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

2: (2 10 4)

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

3: (1 19 8)

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

4: (5 20 18)

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