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 A043610 #13 Aug 29 2025 16:12:11 %S A043610 6,8,9,10,11,12,13,15,16,17,18,19,20,22,23,24,25,26,27,29,30,31,32,33, %T A043610 34,36,42,44,45,46,47,50,57,64,71,72,79,84,85,87,88,89,93,100,107,108, %U A043610 115,122,126,127,128,130,131,136,143,144,151 %N A043610 Numbers whose base-6 representation has exactly 2 runs. %t A043610 Select[Range[200],Length[Split[IntegerDigits[#,6]]]==2&] (* _Harvey P. Dale_, Nov 18 2023 *) %Y A043610 Cf. A007092. %Y A043610 Subsequence of A043695. %K A043610 nonn,base,changed %O A043610 1,1 %A A043610 _Clark Kimberling_