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 A140607 #5 Mar 30 2012 18:52:52 %S A140607 3,5,7,10,11,13,13,17,19,22,23,31,37,29,31,31,43,37,37,41,43,55,47,64, %T A140607 45,53,61,55,59,61,55,61,67,78,71,73,91,106,79,136,83,77,85,89,91,96, %U A140607 109,97,136,101,103,109,107,109,109,113,155,103,145,166,111,201,127,113 %N A140607 (A039649(2n+1)+A137576(n))/2. %C A140607 If 2n+1 is a prime then a(n) = 2n+1. %H A140607 Ray Chandler, <a href="/A140607/b140607.txt">Table of n, a(n) for n=1..10000</a> %Y A140607 Cf. A039649, A137576, A000010, A000040, A140140, A138193, A138217, A138227, A138535, A138536, A138537, A138539, A140141, A140608, A138786, A140667. %K A140607 nonn %O A140607 1,1 %A A140607 _Vladimir Shevelev_, May 18 2008 %E A140607 Extended by _Ray Chandler_, May 20 2008, May 24 2008