1: (7 10 16)

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

2: (6 11 9)

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

3: (3 12 10)

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

4: (1 8 5)

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