1: (3 8 11)

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

2: (6 12 10)

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

3: (5 9 7)

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

4: (4 14 11)

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