In music theory notes generated by the consequencing interval of $4/3$ generates harmonic series. Series can be normalized by multiplicating the fraction with a $2$ in power $n$.
What is a formula for $n$ depending on $m$ such that the ratio is always between $1$ and $2$?
I'm looking for integer solutions for n when m is a whole number:
$$1 \le (4/3)^m * 2^n \le 2$$