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 A333126 #14 Feb 16 2025 08:33:59 %S A333126 0,1,2,3,4,5,6,7,8,9,11,12,13,14,17,18,19,22,23,24,25,27,28,29,34,35, %T A333126 38,39,44,46,49,50,51,55,56,57,59,68,70,71,76,77,78,88,89,92,93,98,99, %U A333126 102,103,110,113,114,115,119,140,141,142,152,156,157,177,178 %N A333126 Numbers whose binary representation does not contain a square-subword of length 4 or more. %C A333126 A square-(sub)word consists of two nonempty identical adjacent subwords. %C A333126 This sequence is finite, the last term being a(239) = 183858 with binary representation "101100111000110010". %H A333126 Rémy Sigrist, <a href="/A333126/b333126.txt">Table of n, a(n) for n = 1..239</a> %H A333126 Rémy Sigrist, <a href="/A333126/a333126.gp.txt">PARI program for A333126</a> %H A333126 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarefreeWord.html">Squarefree Word</a> %H A333126 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %o A333126 (PARI) See Links section. %Y A333126 Cf. A333124. %K A333126 nonn,base,fini,full %O A333126 1,3 %A A333126 _Rémy Sigrist_, Mar 08 2020