Most graph theorists will agree that among the vast number of graphs that exist there are only a few that can be considered really interesting.
It is the aim of this House of Graphs project to find a workable definition of 'interesting' and provide a searchable database of graphs that conform to this definition. And to allow users to add additional graphs which they find interesting. In order to avoid abuse, only registered users can add new graphs.
We would also like to serve as a repository for lists of graphs (which can be downloaded in several formats) and graph generators. Currently we only provide a small selection.
The supported formats and their definition can be found here.
The supported invariants and their definition can be found here.