1: (0 5 15)

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

2: (2 18 10)

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

3: (5 17 12)

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

4: (10 16 14)

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