1: (0 2 10)

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

2: (5 10 18)

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

3: (3 16 6)

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

4: (14 19 17)

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