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 A036115 #4 Mar 02 2015 16:08:43 %S A036115 4,1,1411,1441,3451,15341331,25244341,2544432241,2574235221, %T A036115 173554237221,374524337231,473534635231,37163544833221, %U A036115 1827263544833231,3827262544835241,4827263554637231,3837364554537221 %N A036115 A summarize Fibonacci sequence: summarize the previous two terms!. %C A036115 From the 23rd term the sequence gets into a cycle of 16. %Y A036115 Cf. A036059. %K A036115 base,easy,nonn %O A036115 0,1 %A A036115 _Floor van Lamoen_