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 A190682 #14 Sep 08 2022 08:45:57
%S A190682 582169,588289,1136356,1183744,1454436,1700416,2030625,2424249,
%T A190682 2436721,2669956,2732409,2930944,3024121,3175524,3305124,3381921,
%U A190682 3481956,3526884,3900625,4129024,4182025,4223025,4553956,4804864,4981824
%N A190682 Squares whose squares contain every digit at least once.
%C A190682 Squares in A054038.
%H A190682 Giovanni Resta, <a href="/A190682/b190682.txt">Table of n, a(n) for n = 1..10000</a> (first 2000 terms from Bruno Berselli)
%F A190682 a(n) = A121321(n)^2.
%e A190682 a(2) = A054038(2225) = 588289 = 767^2.
%o A190682 (Magma) [ n^2: n in [0..2232] | Seqset(Intseq(n^4)) eq {0..9} ];
%K A190682 nonn,base
%O A190682 1,1
%A A190682 _Bruno Berselli_, May 17 2011