1: (3 10 15)

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

2: (6 16 11)

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

3: (1 8 5)

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

4: (10 17 12)

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