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arxiv: 1709.05651 · v1 · pith:42EHKSDLnew · submitted 2017-09-17 · 🧮 math.NT

A digit reversal property for an analogue of Stern's sequence

classification 🧮 math.NT
keywords sequencedigitreversalsternanaloguebasebase-consider
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We consider a variant of Stern's diatomic sequence, studied recently by Northshield. We prove that this sequence $b$ is invariant under \emph{digit reversal} in base $3$, that is, $b_n=b_{n^R}$, where $n^R$ is obtained by reversing the base-$3$ expansion of $n$.

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