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 A136928 #9 Apr 12 2024 09:51:26 %S A136928 0,548,5480,54800,55548,548000,555388,555480,588048,5480000,5553880, %T A136928 5554548,5554800,5834388,5880480,54800000,55538800,55545480,55548000, %U A136928 58343880,58804800,548000000,550500548,555388000,555454800,555480000,583438800,588048000,5480000000,5505005480,5553880000,5554548000,5554800000,5834388000 %N A136928 Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 8. %C A136928 Generated with DrScheme. %H A136928 Jonathan Wellons, <a href="/A136928/b136928.txt">Table of n, a(n) for n = 1..102</a> %H A136928 J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived] %e A136928 583854308054548^2 = 340885853033855033588543484304. %Y A136928 See also A058429-A058430. - _M. F. Hasler_, Jan 24 2008 %K A136928 base,nonn %O A136928 1,2 %A A136928 Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008