Can you give us any hints? I tried findobj() but can't make progress!
You are on the right track with findobj(). The trick is what the call to "legend" does to the objects that make the solution very simple.
Back to basics 23 - Triangular matrix
"Look and say" sequence
Getting logical indexes
Basics: Divide integers to get integer outputs in all cases
Big numbers, repeated least significant digits
Generate a NaN...on purpose
Big numbers, least significant digits
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