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 A030177 #30 Jul 16 2025 08:18:28
%S A030177 2,8,216,238,258,738,6742,25408,80408,2377908,80278612,667567716,
%T A030177 6756141388,6823243112,23802219742,81648365908,2136952377908,
%U A030177 80401900255258,258159749875238,25425667278648884,237605691124298293112,75269219840819770294592,675754811056988742949784
%N A030177 When squared gives number composed of digits {4,5,6}.
%H A030177 Zhao Hui Du, <a href="/A030177/b030177.txt">Table of n, a(n) for n = 1..24</a>
%H A030177 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_, May 18 2009]
%H A030177 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquareNumber.html">Square Number</a>.
%H A030177 Author?, <a href="http://web.archive.org/web/20080708203024/http://blue.kakiko.com/mmrmmr/htm/eqtn06.html">Source</a>, (<a href="http://web.archive.org/web/20060426155831/http://blue.kakiko.com/mmrmmr/txt/eqtn06.txt">txt</a>)
%Y A030177 Cf. A030176.
%K A030177 nonn,base
%O A030177 1,1
%A A030177 _Patrick De Geest_
%E A030177 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
%E A030177 Two more terms from _Jon E. Schoenfield_, Sep 04 2006
%E A030177 More terms from Mishima's webpage added by _Max Alekseyev_, May 18 2009
%E A030177 Offset corrected by _Zhao Hui Du_, Feb 29 2024