1: (4 9 12)

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

2: (8 14 11)

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

3: (4 9 12)

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

4: (3 13 5)

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