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 A292765 #6 Oct 10 2017 07:11:56 %S A292765 1,4,9,18,33,60,105,180,309,526,895,1520,2581,4378,7427,12596 %N A292765 A292764(n)/2. %Y A292765 Cf. A292764. %K A292765 nonn,more %O A292765 1,2 %A A292765 _N. J. A. Sloane_, Sep 27 2017