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 A032844 #9 Feb 12 2021 20:45:11 %S A032844 1,2,3,4,5,8,9,10,11,15,16,17,22,23,29,48,49,54,55,56,60,61,62,63,66, %T A032844 67,68,69,70,90,91,92,96,97,98,99,102,103,104,105,106,132,133,134,135, %U A032844 138,139,140,141,142,174,175,176,177,178,289,290 %N A032844 Numbers whose base-6 representation Sum_{i=0..m} d(i)*6^i has d(m) < d(m-1) > d(m-2) < ... %K A032844 nonn,base %O A032844 1,2 %A A032844 _Clark Kimberling_