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 A053952 #14 Mar 09 2024 20:57:03
%S A053952 2,22,76478,210828,6968112,235763622,236323603452022,767175898056538,
%T A053952 293061185503724726684202222622
%N A053952 Numbers k such that k^2 contains only digits {4,5,8}.
%H A053952 Patrick De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">Squares containing at most three distinct digits, Index entries for related sequences</a>
%H A053952 H. Mishima <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm">Squares consisted of 3 different digits</a> [From _Max Alekseyev_, Apr 12 2009]
%Y A053952 Cf. A053953.
%K A053952 nonn,base,more
%O A053952 1,1
%A A053952 _Patrick De Geest_, Mar 15 2000
%E A053952 Two more terms from Mishima's page added by _Max Alekseyev_, Apr 12 2009
%E A053952 a(9) from _Zhao Hui Du_, Mar 09 2024