 Stella octangula number

The Stella Octangula is a specific type of polyhedron known as a star polyhedron. More precisely, it is a star-shaped figure formed by combining two tetrahedra in a manner that gives rise to a space-filling structure. The term "Stella Octangula" can also refer to a specific aspect of polyhedral geometry, notably linked to the fields of combinatorial geometry and polyhedral combinatorics.