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 A081177 #23 Apr 23 2016 15:59:28 %S A081177 1,2,2,5,4,7,12,6,3,3,27,3,3,10,24,3,3,12 %N A081177 Values of r in the terms of A067688. %Y A081177 Cf. A067688. %K A081177 nonn %O A081177 1,2 %A A081177 _Jud McCranie_, Mar 10 2003 %E A081177 Offset corrected and a(13)-a(14) from _Donovan Johnson_, May 17 2010 %E A081177 a(15) by _Jud McCranie_, Feb 05 2016 %E A081177 a(16) by _Jud McCranie_, Mar 15 2016 %E A081177 a(17) and a(18) by _Jud McCranie_, Apr 23 2016