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 A027036 #5 Mar 30 2012 18:56:13 %S A027036 1,3,8,22,61,173,496,1428,4121,11911,34476,99942,290185,843933, %T A027036 2458296,7171728,20952569,61295779,179539052,526476666,1545434817, %U A027036 4540842657,13353733048,39302395732,115759913681,341189589287 %N A027036 Partial sums of A027035. %K A027036 nonn %O A027036 0,2 %A A027036 _Clark Kimberling_