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 A033027 #11 Aug 14 2021 16:11:25 %S A033027 15,30,45,60,75,90,105,120,135,150,165,180,195,211,422,633,844,1055, %T A033027 1266,1477,1688,1899,2110,2321,2532,2743,2940,2955,2970,2985,3000, %U A033027 3015,3030,3045,3060,3075,3090,3105,3120,3135,5880 %N A033027 Numbers whose base-14 expansion has no run of digits with length < 2. %H A033027 Vincenzo Librandi, <a href="/A033027/b033027.txt">Table of n, a(n) for n = 1..1100</a> %t A033027 Select[Range[10000], Min[Length/@Split[IntegerDigits[#, 14]]]>1&] (* _Vincenzo Librandi_, Feb 05 2014 *) %K A033027 nonn,base %O A033027 1,1 %A A033027 _Clark Kimberling_