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 A058455 #16 Aug 11 2024 14:41:33
%S A058455 3,283,301345331969667,299831600904572582192518303
%N A058455 Numbers k such that k^2 contains only digits {0,8,9}, not ending with zero.
%H A058455 P. De Geest, <a href="https://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>
%H A058455 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#089">Sporadic tridigital solutions</a>
%Y A058455 Cf. A058456.
%K A058455 nonn,base,hard,more
%O A058455 1,1
%A A058455 _Patrick De Geest_, Nov 15 2000
%E A058455 a(4) from _Zhao Hui Du_, Feb 28 2024