1: (0 3 15)

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

2: (1 19 7)

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

3: (2 13 4)

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

4: (15 17 18)

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