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 A140262 #5 Jul 09 2025 04:29:16 %S A140262 0,4,1,1,6,0,4,6,4,1,6,0,4,6,4,6,4,1,6,0,4,6,4,1,6,4,6,4,1,1,1,1,6,0, %T A140262 4,6,4,1,1,1,1,1,1,6,4,6,0,0,0,0,4,1,6,0 %N A140262 A140260 reduced modulo 9. %H A140262 Nicolau Werneck, et al. <a href="http://forum.wolframscience.com/showthread.php?threadid=1506">Discussion on the NKS Forum</a> %K A140262 nonn %O A140262 0,2 %A A140262 _Antti Karttunen_, May 16 2008, based on the 2008 postings by Nicolau Leal Werneck (nwerneck(AT)gmail.com)