1: (0 2 3)

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

2: (6 8 16)

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

3: (5 14 7)

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

4: (13 17 15)

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