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 A011455 #15 Sep 06 2014 09:22:58 %S A011455 2,6,14,46,302,8494,2105646,17181974830,36028814200938798, %T A011455 618970019678718951650500910, %U A011455 22300745198530623760505737951367313156481326,13803492693581127574869511746854796103432841704846511061692361604079918 %N A011455 Sum 2^Fibonacci(i), i=2..n. %H A011455 Ivan Panchenko, <a href="/A011455/b011455.txt">Table of n, a(n) for n = 2..18</a> %F A011455 Partial sums of A000301 (first 2 terms skipped). - _R. J. Mathar_, Apr 26 2007 %t A011455 Accumulate[2^Fibonacci[Range[2,15]]] (* _Harvey P. Dale_, May 07 2013 *) %K A011455 nonn,easy %O A011455 2,1 %A A011455 Bagirath R. Krishnamachari (bagi(AT)miel.mot.com) %E A011455 Name corrected by _T. D. Noe_, Mar 03 2011 %E A011455 a(13) from _Harvey P. Dale_, May 07 2013