1: (1 5 9)

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

2: (4 14 6)

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

3: (1 17 11)

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

4: (12 19 15)

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