The Schläfli double six graph is the 42-vertex, 60-edge Levi graph of the Schläfli double six configuration.
It is its own graph distance-5 graph.
Schläfli Double Six Graph
See also
Levi Graph, Schläfli Double SixExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Schläfli Double Six Graph." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/SchlaefliDoubleSixGraph.html