1: (5 10 17)

(0 19 3)(1 7 4)(2 15 6)(5 12 18 17 8)(9 13 11)(10)(14 20 16)

2: (2 15 6)

(0 19 3)(1 7 4)(2)(5 12 18 17 8)(6)(9 13 11)(10)(14 20 16)(15)

3: (5 12 8)

(0 19 3)(1 7 4)(2)(5)(6)(8 18 17)(9 13 11)(10)(12)(14 20 16)(15)

4: (9 13 11)

(0 19 3)(1 7 4)(2)(5)(6)(8 18 17)(9)(10)(11)(12)(13)(14 20 16)(15)