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 A076566 #12 Nov 21 2013 12:47:54 %S A076566 3,3,3,5,3,7,3,3,5,11,3,13,7,5,3,17,3,19,5,7,11,23,3,5,13,3,7,29,5,31, %T A076566 3,11,17,7,3,37,19,13,5,41,7,43,11,5,23,47,3,7,5,17,13,53,3,11,7,19, %U A076566 29,59,5,61,31,7,3,13,11,67,17,23,7,71,3,73,37,5,19,11,13,79,5,3,41,83,7 %N A076566 Greatest prime divisor of 3n+3 (sum of three successive integers). %C A076566 a(n) = A006530(A000082(n+1)). - _Reinhard Zumkeller_, Oct 03 2012 %H A076566 Reinhard Zumkeller, <a href="/A076566/b076566.txt">Table of n, a(n) for n = 1..10000</a> %t A076566 FactorInteger[Total[#]][[-1,1]]&/@Partition[Range[100],3,1] (* _Harvey P. Dale_, Apr 03 2011 *) %o A076566 (Haskell) %o A076566 a076566 = a006530 . (* 3) . (+ 1) -- _Reinhard Zumkeller_, Oct 03 2012 %Y A076566 Cf. A008585. %K A076566 easy,nonn %O A076566 1,1 %A A076566 _Zak Seidov_, Oct 19 2002