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 A088124 #3 Dec 05 2013 19:56:33 %S A088124 5,11,19,241,91393,19004355761,3121,79,456151,113,6214345434133, %T A088124 647380324484508990481,23727240537882663031640150881, %U A088124 33371196003273361,998893713465761,251,610748560241,14136113,5228581733308860742493949409 %N A088124 Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n)= smallest prime f(n,x), or 0 if no such prime exists. %Y A088124 Cf. A088122, A088123, A088125. %K A088124 nonn %O A088124 1,1 %A A088124 _Amarnath Murthy_, Sep 25 2003 %E A088124 More terms from Tom Mueller (muel4503(AT)uni-trier.de), May 04 2004