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 A073437 #4 Oct 15 2013 22:31:27 %S A073437 4,6,8,21,22,25,26,27,30,33,66,70,77,78,82,86,87,88,92,93,94,95,96, %T A073437 100,116,117,118,119,120,219,220,221,222,247,248,249,250,255,256,261, %U A073437 262,267,268,289,290,291,292,297,298,299,300,301,302,303,304,305,306,323 %N A073437 Smallest x such that remainder Mod[A065855(x), A000720(x)]=n. %e A073437 Remainder 4 appears first as Mod[G[21],Pi[21]]= Mod[21-Pi[21]-1,Pi[21]]=Mod[21-8-1,8]=Mod[12,8]=4, so a(4)=21. %Y A073437 Cf. A065855, A000720, A073435, A073436. %K A073437 nonn %O A073437 1,1 %A A073437 _Labos Elemer_, Jul 31 2002