1: (8 11 16)

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

2: (6 12 10)

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

3: (3 9 7)

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

4: (5 13 11)

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