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 A023392 #17 Oct 21 2014 03:38:56 %S A023392 9,10,11,12,13,14,15,16,17,18,20,22,24,26,28,31,34,37,41,45,50,55,61, %T A023392 67,74,82,101,122,145,171,210,253,311,375,456,556,677,832,1124,1478, %U A023392 2022,2686,3614,4855,6584,10025,14668,22107,33283,50581,76341,125643,211313 %N A023392 a(n+1) = a(n) converted to base 10 from base 9 (written in base 10). %H A023392 Vincenzo Librandi, <a href="/A023392/b023392.txt">Table of n, a(n) for n = 1..160</a> %t A023392 NestList[FromDigits[IntegerDigits[#,9]]&,9,53] (* _Zak Seidov_, Apr 18 2014 *) %Y A023392 Cf. A023383, A023390. %K A023392 nonn,base %O A023392 1,1 %A A023392 _David W. Wilson_