1: (0 7 15)

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

2: (6 16 13)

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

3: (5 9 15)

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

4: (10 17 14)

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