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 A361668 #6 Mar 24 2023 17:46:10 %S A361668 30,51,60,89,102,105,113,119,120,128,135,145,149,150,153,168,178,179, %T A361668 181,191,200,204,210,215,219,221,224,226,238,240,245,248,256,257,267, %U A361668 270,277,281,290,298,299,300,305,306,313,317,323,336,343,345,349,356,357 %N A361668 Numbers k such that A361662(k) != A181821(A361666(k)). %C A361668 Equivalently, numbers k such that A361666(k) != A181820(A361663(k)). %Y A361668 Cf. A181820, A181821, A361662, A361663, A361666. %K A361668 nonn %O A361668 1,1 %A A361668 _Pontus von Brömssen_, Mar 20 2023