1: (0 4 7)

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

2: (2 18 5)

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

3: (4 15 6)

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

4: (14 19 17)

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