It won't work correctly for n greater than 10. :-)
ans-7*(ans>10) would fix that.
You are right, you could use ind2sub to avoid some of the limitations of dec2base as well (e.g. for n>36)...
Return the 3n+1 sequence for n
Convert a vector of Integers into a matrix of binaries
the number of inputs
Dimensions of Spaces
Vector to 3-Column Matrix
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