Does anyone know of the link to an online library of of unlabeled, connected graphs on n vertices? I remember looking at such an archive a few years ago while at a Macaulay 2 workshop, but I've been unable to find it (or any other one) since then.


The page I remember seeing only had enumerated unlabeled graphs up to n=11,12, or 13 vertices, and the graph I'm looking for data on is much larger, so links to repositories of larger (special) graphs.


The most specific part of this request: The graph I'm looking to find a list of edges for is the 1-skeleton of the 600-cell, if anyone happens to just have that information on-hand (or readily available.)



Online Library of Unlabeled Connected Graphs on n Vertices
Is this it? It is a searchable database of 
"[Small Simple Graphs:
Connected, undirected, and unlabeled](http://gfredericks.com/sandbox/graphs)."


And an explicit list of the vertices, edges, and faces of the 600-cell can be found
at [Paul Bourke's site](http://local.wasp.uwa.edu.au/~pbourke/geometry/platonic4d/).


