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 A050235 #13 Feb 16 2025 08:32:40 %S A050235 0,6,2,9,7,10,2,3,2,0,2,4,2,3,3,3,5,3,5,3,1,1,3,1,1,3,7,1,2,5,2,4,6,3 %N A050235 a(n) is the number of n-digit Keith numbers A007629. %H A050235 Mike Keith, <a href="http://www.cadaeic.net/keithnum.htm">Keith Numbers</a> %H A050235 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KeithNumber.html">Keith Number</a> %Y A050235 Cf. A007629. %K A050235 nonn,hard,base %O A050235 1,2 %A A050235 _Eric W. Weisstein_ %E A050235 More terms from _Eric W. Weisstein_ using results from D. Lichtblau, Aug 24 2004 %E A050235 a(27)-a(31) from Eric W. Weisstein from computations by Daniel Lichtblau _Eric W. Weisstein_, Jun 23 2009 %E A050235 a(32)-a(34) from computations by Daniel Lichtblau -- _Eric W. Weisstein_, Aug 26 2009