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 A050419 #11 Jul 04 2021 15:50:41 %S A050419 7,10,12,14,16,19,21,23,25,27,29,31,32,34,35,37,39,41,43,44,46,47,52, %T A050419 53,55,56,60,62,64,65,68,70,74,76,78,79,80,84,87,89,90,92,94,98,101, %U A050419 102,105,107,109,111,112,114,115,118,121,123 %N A050419 Numbers k such that A050416(k) > A050416(k+1). %K A050419 nonn %O A050419 1,1 %A A050419 _Clark Kimberling_