1: (2 6 16)

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

2: (1 9 3)

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

3: (7 16 13)

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

4: (5 11 8)

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