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 A058446 #16 Mar 14 2025 20:03:08
%S A058446 5000060065066660656065066555556
%N A058446 Squares composed of digits {0,5,6}, not ending with zero.
%H A058446 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>
%H A058446 Patrick De Geest, <a href="https://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>
%H A058446 Shyam Sunder Gupta, <a href="https://doi.org/10.1007/978-981-97-2465-9_2">Elegance of Squares, Cubes, and Higher Powers</a>, Exploring the Beauty of Fascinating Numbers, Springer (2025) Ch. 2, 29-81.
%H A058446 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm">Sporadic tridigital solutions</a>
%H A058446 <a href="/index/O#oneterm">Index entries for one-term sequences</a>
%Y A058446 Cf. A058445.
%K A058446 nonn,base,more,bref
%O A058446 1,1
%A A058446 _Patrick De Geest_, Nov 15 2000