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 A144007 #2 Mar 30 2012 18:37:12 %S A144007 1,3,10,30,76,196,470,1063,2356,5142,10785,22120,44594,88367,172794, %T A144007 332045,628230,1175169,2173393,3977199,7209289,12934491,22987311, %U A144007 40509706,70823871,122892290,211765621,362436448,616131473,1040782758 %N A144007 Limit of unsigned reversed rows of triangle A144006. %Y A144007 Cf. A144006. %K A144007 nonn %O A144007 0,2 %A A144007 _Paul D. Hanna_, Sep 10 2008