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 A100470 #5 Oct 23 2019 22:15:37 %S A100470 0,1,2,3,4,5,6,7,8,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17, %T A100470 18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29, %U A100470 29,30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,41 %N A100470 n appears A055642(n) times (appearances equal number of decimal digits). %C A100470 Lexicographically smallest nondecreasing left inverse to A117804: a(A117804(n)) = n. Gives the number to which belongs the digit A007376(n). - _M. F. Hasler_, Oct 23 2019 %Y A100470 Cf. A055642, A030530 (n's appearances equal its number of bits). %K A100470 base,easy,nonn %O A100470 0,3 %A A100470 _Rick L. Shepherd_, Nov 21 2004