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 A114904 #12 Feb 16 2025 08:33:00 %S A114904 1,3,4,5,6,7,8,9,10,11,14,16,17,19,20,21,23,24,25,27,29,31,32,33,34, %T A114904 35,37,38,39 %N A114904 Sorted numbers of digits of any base-10 narcissistic number. %H A114904 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/NarcissisticNumber.html">Narcissistic Number</a> %Y A114904 Cf. A005188, A014576. %K A114904 nonn,fini,full,base %O A114904 1,2 %A A114904 _Eric W. Weisstein_, Jan 06 2006