1: (4 7 11)

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

2: (6 20 8)

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

3: (4 7 11)

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

4: (5 13 9)

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