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 A122674 #3 Mar 30 2012 16:50:31 %S A122674 1,1,2,8,35,240 %N A122674 Number of trees with n nodes generated from the simple cubic lattice. %D A122674 J. R. Long and R. H. Holm, Enumeration and structural classification of clusters derived from parent solids ..., J. Amer. Chem. Soc., 116 (1994), 9987-10002. %K A122674 nonn,more %O A122674 1,3 %A A122674 _N. J. A. Sloane_, Sep 23 2006