A regular polygram 
is generalization of a (regular) polygon on 
sides (i.e., an 
-gon) obtained by connecting every 
th vertex around a circle with every 
th, "picking up" the pencil as needed to repeat
the procedure after traversing the circle until none of the vertices remain unconnected.
Lachlan (1893) defines polygram to be a figure consisting of 
straight lines.
The best-known polygrams are the pentagram and hexagram (a.k.a. Star of David). The following table summarizes some named polygrams.
