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 A097502 #3 Mar 30 2012 18:50:45
%S A097502 2,3,4,5,6,8,8,11,12,13,14,14,17,18,18,20,20,23,24,25,26,28,29,30,32,
%T A097502 32,33,35,38,38,39,41,42,43,44,44,46,47,48,48,50,53,54,56,58,59,60,60,
%U A097502 61,62,62,63,65,67,68,68,71,72,72,73,74,74,77,78,80,80,81,83,84,85,86,88
%N A097502 Least integer m such that there are at least n composite numbers between m and 2*m.
%C A097502 a(n) = Min{m: n <= #{x composite: m<=x<=2*m}}.
%Y A097502 Cf. A059316, A002808.
%K A097502 nonn
%O A097502 1,1
%A A097502 _Reinhard Zumkeller_, Aug 25 2004