1: (4 7 13)

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

2: (6 17 8)

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

3: (1 13 5)

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

4: (0 10 3)

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