1: (2 6 15)

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

2: (3 16 14)

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

3: (1 7 5)

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

4: (6 17 8)

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