1: (0 8 10)

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

2: (6 12 9)

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

3: (5 18 10)

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

4: (11 19 13)

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