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 A043493 #19 Jan 21 2025 10:50:44 %S A043493 1,10,12,13,14,15,16,17,18,19,21,31,41,51,61,71,81,91,100,102,103,104, %T A043493 105,106,107,108,109,120,122,123,124,125,126,127,128,129,130,132,133, %U A043493 134,135,136,137,138,139,140,142,143,144,145 %N A043493 Numbers that contain a single 1. %H A043493 Enrique Pérez Herrero, <a href="/A043493/b043493.txt">Table of n, a(n) for n = 1..2000</a> %H A043493 <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>. %F A043493 a(n) >> n^k where k = log(10)/log(9) = 1.04795.... - _Charles R Greathouse IV_, Jan 21 2025 %t A043493 Select[Range[9000],DigitCount[#,10,1]==1&] (* _Enrique Pérez Herrero_, Nov 29 2013 *) %Y A043493 A178550 is a subsequence. %Y A043493 Cf. A043489, A043497, A043501, A043505, A043509, A043513, A043517, A043521, A043525, A011531. %K A043493 nonn,base,easy %O A043493 1,2 %A A043493 _Clark Kimberling_