1: (2 4 9)

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

2: (3 14 6)

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

3: (4 12 7)

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

4: (11 16 13)

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