PROJECT EULER · #0126
Cuboid Layers
The minimum number of cubes to cover every visible face on a cuboid measuring

If we then add a second layer to this solid it would require forty-six cubes to cover every visible face, the third layer would require seventy-eight cubes, and the fourth layer would require one-hundred and eighteen cubes to cover every visible face.
However, the first layer on a cuboid measuring
We shall define
It turns out that
Find the least value of
Write-up coming later
The complete problem is available here. An approach, code, and answer will be added later.