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 A179225 #2 Mar 31 2012 14:41:48 %S A179225 1,2,4,6,5,9,25,343,844596301 %N A179225 Iterative mapping with offset: a(1)=1, a(n)=A179216(a(n-1)-1). %C A179225 a(10) is greater than 10^14. %H A179225 Will Nicholes, <a href="http://willnicholes.com/math/primesigmap.htm">Iterative mapping of prime signatures</a>. %Y A179225 Cf. A179216, A179226. %K A179225 nonn %O A179225 1,2 %A A179225 _Will Nicholes_, Jul 10 2010