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 A050087 #10 Jul 04 2021 13:48:35 %S A050087 3,4,6,10,11,12,13,15,18,19,21,23,24,26,27,29,31,35,36,37,38,39,44,45, %T A050087 46,47,49,50,51,54,55,58,59,61,63,65,66,67,69,71,72,75,76,78,79,80,83, %U A050087 84,85,87,89,90,92,95,96,98,100,101,103,104 %N A050087 Numbers k such that A050084(k) > A050084(k+1). %K A050087 nonn %O A050087 1,1 %A A050087 _Clark Kimberling_