Tesseractic tetracomb

The tesseractic tetracomb or test, also called the tesseractic honeycomb, is one of three regular tetracombs or tessellations of 4D Euclidean space. 4 tesseracts join at each face, and 16 join at each vertex of this honeycomb. It is the 4D hypercubical honeycomb.

Vertex coordinates
The vertices of a tesseractic tetracomb of edge length 1 are given by (i, j, k, l), where i, j, k, l are integers.