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 A039681 #4 May 18 2013 16:49:22 %S A039681 1,5,7,11,13,19,23,25,29,37,41,49,59,61,65,77,83,91,97,101,103,115, %T A039681 121,131,133,137,149,151,155,163,173,175,181,185,187,205,211,223,227, %U A039681 235,247,253,275,277,281,283,295,299,319,325,329,331,347,353,367,379,389 %N A039681 Odd Fibonacci-lucky numbers. %C A039681 See A039672 for definition. %K A039681 nonn %O A039681 1,2 %A A039681 _Felice Russo_ %E A039681 Corrected and extended by Larry Reeves (larryr(AT)acm.org), Feb 21 2001