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 A117072 #11 May 01 2015 07:42:41 %S A117072 6,13,25,48,91,176,345,682,1355,2698,5383,10752,21489,42962,85907, %T A117072 171796,343573,687126,1374231,2748438,5496851,10993676,21987325, %U A117072 43974622,87949215,175898400,351796769,703593506,1407186979,2814373924,5628747813,11257495590 %N A117072 Number at end of segment n of A078783. %C A117072 a(n) = A078783(3*n). %D A117072 N. J. A. Sloane and Allan Wilks, On sequences of Recaman type, paper in preparation, 2006. %H A117072 Reinhard Zumkeller, <a href="/A117072/b117072.txt">Table of n, a(n) for n = 1..3000</a> %o A117072 (Haskell) %o A117072 a117072 n = a117072_list !! (n-1) %o A117072 a117072_list = tSegments !! 2 %o A117072 -- tSegments defined in A117070. -- _Reinhard Zumkeller_, May 01 2015 %Y A117072 Cf. A078783, A117070, A117071. %K A117072 nonn %O A117072 1,1 %A A117072 _N. J. A. Sloane_, Apr 17 2006