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 A229404 #7 Sep 22 2013 20:27:18 %S A229404 1,9,44,163,519,1502,4081,10625,26836,66278,160934,385647,914426, %T A229404 2149634,5017105,11638062,26853653,61674487,141063327,321453345, %U A229404 730085764,1653165271,3733016952,8408241791,18894670248,42368155842,94814369316,211789296206,472262524451 %N A229404 Number of n-node rooted identity trees of height 10. %C A229404 The number of terms with a(n)>0 is A038093(10)-10. %H A229404 Alois P. Heinz, <a href="/A229404/b229404.txt">Table of n, a(n) for n = 11..500</a> %Y A229404 Column k=10 of A227819. %K A229404 nonn,fini %O A229404 11,2 %A A229404 _Alois P. Heinz_, Sep 22 2013