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 A026882 #4 Mar 30 2012 18:56:11 %S A026882 1,14,127,956,6512,41786,258077,1553610,9188078,53657836,310517294, %T A026882 1785024568,10211000720,58198617436,330817445679,1876740925932, %U A026882 10631509031932,60164430240578,340233944451908,1923162599240162 %N A026882 T(2n,n-3), T given by A026769. %K A026882 nonn %O A026882 3,2 %A A026882 _Clark Kimberling_