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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
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J. Leroy, M. Rigo, and M. Stipulanti, <a href="httphttps://www.combinatoricsdoi.org/ojs/index10.php/eljc/article/view37236/v24i1p446581">Behavior of Digital Sequences Through Exotic Numeration Systems</a>, Electronic Journal of Combinatorics 24(1) (2017), #P1.44. See w(n) in Example 19.
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a(n) = -2*floor(Pi*2^(-4 + n)) + floor(Pi*2^(-3 + n)) for n > 1. - Mariusz Iwaniuk, Apr 28 2017
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Table[ResourceFunction["NthDigit"][Pi, n, 2], {n, 1, 100}] (* Joan Ludevid, Jun 24 2022; easy to compute a(10000000)=0 with this function; requires Mathematica 12.0+ *)
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