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 A161839 #2 Mar 30 2012 17:34:00 %S A161839 5,6,7,8,9,10,11,13,15,17,19,23,25,29,31,37,41,43,47,53,59,61,67,71, %T A161839 73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163, %U A161839 167,173,179,181,191,193,197,199,211,223,227,229,233 %N A161839 a(n) = A161835(n)/5. %Y A161839 Cf. A018253, A161344, A161345, A161424, A161425, A161835, A161901. %K A161839 easy,nonn %O A161839 1,1 %A A161839 _Omar E. Pol_, Jun 30 2009