TITLE: Online Library of Unlabeled Connected Graphs on n Vertices
QUESTION [5 upvotes]: 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.)

REPLY [2 votes]: Is it possible that this is what you remember seeing?
http://wwwteo.informatik.uni-rostock.de/isgci/smallgraphs.html