1: (0 5 18)

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

2: (1 19 8)

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

3: (3 9 5)

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

4: (2 17 4)

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