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Ruler function

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The ruler function is an integer sequence in mathematics which is useful to solve many problems, such as the towers of Hanoi or the baguenaudier.

The ruler function of $n$ can be defined as the 2-adic valuation of 2n. or as the greatest number $k$ such as $2^{k}$ divides $2n$

The ruler function is known in the OEIS as the sequence A001511

References

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