1: (6 7 11)

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

2: (7 12 14)

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

3: (9 15 13)

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

4: (3 10 8)

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