1: (0 5 9)

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

2: (7 9 12)

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

3: (2 15 10)

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

4: (11 16 13)

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