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arxiv: math/0402458 · v2 · submitted 2004-02-27 · 🧮 math.NT · math.CO

On simultaneous binary expansions of n and n²

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keywords binarydigitsfamilysequenceaccuratelyasymptoticcomposedconjecture
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A new family of sequences is proposed. An example of sequence of this family is more accurately studied. This sequence is composed by the integers $n$ for which the sum of binary digits is equal to the sum of binary digits of $n^2$. Some structure and asymptotic properties are proved and a conjecture about its counting function is discussed.

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