This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A381929 #8 Mar 11 2025 22:06:58 %S A381929 2,3,5,7,10,12,13,15,18,19,21,24,26,28,29,31,34,35,37,39,42,44,45,48, %T A381929 50,51,53,56,58,60,61,63,66,67,69,71,74,76,77,79,82,83,85,88,90,92,93, %U A381929 96,98,99,101,103,106,108,109,112,114,115,117,120,122,124,125 %N A381929 Ending positions of runs in the regular paperfolding sequence A034947. %C A381929 A "run" is a maximal block of consecutive identical terms. %H A381929 Martin Bunder, Bruce Bates, and Stephen Arnold, <a href="https://doi.org/10.1017/S0004972724000169">The summed paperfolding sequence</a>, Bull. Aust. Math. Soc. 110 (2024), 189-198. %H A381929 Jeffrey Shallit, <a href="https://arxiv.org/abs/2412.17930">Runs in Paperfolding Sequences</a>, arXiv:2412.17930 [math.CO], 2024. %e A381929 The first few terms of A034947 are 1,1,-1,1,1,-1,-1,1,1,1,-1, and the runs end at positions 2,3,5,7,10,... . %Y A381929 Cf. A034947. A371594 gives the starting positions of the runs, and A088431 gives the length of the runs. %K A381929 nonn %O A381929 1,1 %A A381929 _Jeffrey Shallit_, Mar 10 2025