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 A026895 #4 Mar 30 2012 18:56:11 %S A026895 1,7,38,191,935,4547,22166,108790,538668,2692996,13594954,69281309, %T A026895 356222591,1846781939,9647229202,50744420578,268591503348, %U A026895 1429730471552,7649564591070,41117462702680,221938325574492,1202501072716220 %N A026895 T(2n,n+2), T given by A026780. %K A026895 nonn %O A026895 2,2 %A A026895 _Clark Kimberling_