User blog comment:Wythagoras/Extension to Friedmann's stuff/@comment-5150073-20130612192628/@comment-10429372-20130613052601

I use first black vertices, so the sequence of black vertices has length SCG(6). The next sequence can start at place SCG(6), so the sequence has length SCG(SCG(6)) > SCG(13).

The final output of SCG(6,6) > SCG(SCG(SCG(SCG(SCG(SCG(6)))))), but this is a mere lower bound.

If the function isn't defined, we can maybe use only different dots.