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 A047114 #4 Mar 30 2012 18:56:53 %S A047114 1,3,9,24,73,164,534,3187,11000,39888,174411,665360,2528518,10223830, %T A047114 39909056,154727890,612630675,2404810575,9405235895,37053238445, %U A047114 145729990271,572330060383,2253751873412,8875044032506 %N A047114 T(n,n-2), array T as in A047110. %K A047114 nonn %O A047114 2,2 %A A047114 _Clark Kimberling_