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 A038027 #6 Jul 08 2025 22:07:42 %S A038027 5,184613,67,10,11,13,127,77,33,191,187,22,23,25,26,1337,28,3909, %T A038027 504511,37,43,57,36,4331,39,83,441 %N A038027 Least k such that A038025(k)=n-th composite number or 0 if none. %C A038027 If there is a k : A038025(k)=42 it is > 6670000. %K A038027 nonn,hard %O A038027 1,1 %A A038027 _Christian G. Bower_ with large values calculated by Fred W. Helenius (fredh(AT)ix.netcom.com)