An octic graph is a regular graph of degree eight. The numbers of simple octic graphs on , 10, 11, ... nodes are 1, 6, 94, 10786, 3459386, ... (OEIS A014378). Examples are illustrated above and summarized in the following table.

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Weisstein, Eric W. "Octic Graph." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/OcticGraph.html