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 A058435 #17 Mar 08 2024 20:36:55
%S A058435 2,224612,233462,7376002,21072602,22370752,7386136002,735156748252,
%T A058435 21082112192576920612,63639964217112858462,6674983479713230005962,
%U A058435 21214250022106461574572502,2108436491907081488939581538
%N A058435 Numbers k such that k^2 contains only digits {0,4,5}, not ending with zero.
%H A058435 Patrick De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>
%H A058435 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#045">Sporadic tridigital solutions</a>
%Y A058435 Cf. A058436.
%K A058435 nonn,base,more
%O A058435 1,1
%A A058435 _Patrick De Geest_, Nov 15 2000
%E A058435 Three more terms from Mishima's webpage added by _Max Alekseyev_, Jan 28 2012
%E A058435 a(12) from _Zhao Hui Du_, Feb 28 2024
%E A058435 a(13) from _Zhao Hui Du_, Mar 08 2024