1: (0 5 18)

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

2: (1 19 6)

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

3: (3 8 5)

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

4: (2 17 4)

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