**n=0**

A 0-cube is just a point.

**n = 1**

A 1-cube is a line. Its vertices can be labeled using 1 bit.

**n = 2**

A 2-cube is a square. Its vertices can be labeled using 2 bits.

**n = 3**

A 3-cube is a cube. Its vertices can be labeled using 3 bits.

**n = 4**

A 4-cube is a tesseract. Its vertices can be labeled using 4 bits. This is where binary labeling of vertices can be especially useful, because it can help construct a tesseract.