1: (6 8 11)

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

2: (3 11 14)

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

3: (2 13 4)

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

4: (1 9 7)

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