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 A050086 #10 Jul 04 2021 13:47:41 %S A050086 1,2,5,7,8,9,14,16,17,20,22,25,28,30,32,33,34,40,41,42,43,48,52,53,56, %T A050086 57,60,62,64,68,70,73,74,77,81,82,86,88,91,93,94,97,99,102,105,107, %U A050086 110,111,112,116,119,121,123,127,129,130,135,137 %N A050086 Numbers k such that A050084(k) < A050084(k+1). %K A050086 nonn %O A050086 1,2 %A A050086 _Clark Kimberling_