1: (2 8 11)

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

2: (0 9 7)

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

3: (2 8 11)

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

4: (1 20 4)

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