1: (0 7 9)

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

2: (6 11 8)

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

3: (5 13 9)

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

4: (10 15 12)

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