Calculate specification details for an n-dimensional Tesseract
Formula used for every k‑face of an n‑cube: Fk = C(n,k) · 2n‑k
where C(n,k) is “n choose k”. Idea: pick k axes to span the face (C(n,k)) and freeze the other (n‑k) coordinates at 0 or 1 (2n‑k).