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 A098800 #8 Feb 16 2025 08:32:54 %S A098800 1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,3,4,0,1,0,1,0,1,0,1,0,1,0,1,0,1, %T A098800 3,1,0,4,3,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,3,1, %U A098800 0,1,3,5,0,1,3,4,0,4,3,1,0,1,0,6,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,5,0,1,0 %N A098800 Length of longest prefix of binary representation of n that is also a suffix of that of n^2. %H A098800 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %H A098800 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Binary.html">Binary</a> %Y A098800 Cf. A001737, A007088, A091269. %K A098800 nonn,base %O A098800 0,19 %A A098800 _Reinhard Zumkeller_, Oct 31 2004