GraphPolynomial
GraphPolynomial[n,x]
returns a polynomial in 
in which the coefficient of 
is the number of nonisomorphic graphs with 
vertices and 
edges.
GraphPolynomial[n,x,Directed]
returns a polynomial in 
in which the coefficient of 
is the number of nonisomorphic directed graphs with 
vertices and 
edges.
Details and Options
- To use GraphPolynomial, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
Text
Wolfram Research (2012), GraphPolynomial, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/GraphPolynomial.html.
CMS
Wolfram Language. 2012. "GraphPolynomial." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/GraphPolynomial.html.
APA
Wolfram Language. (2012). GraphPolynomial. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Combinatorica/ref/GraphPolynomial.html