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 A245149 #4 Jul 12 2014 17:41:18 %S A245149 1,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,3,3,5,5,7,7,9,9,11,15,18,23,30, %T A245149 36,44,54,63,74,96,112,141,173,218,261,328,390,479,587,716,873,1080, %U A245149 1322,1628,1998,2446,2982,3677,4481,5507,6744,8296,10155,12521 %N A245149 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 9. %H A245149 Alois P. Heinz, <a href="/A245149/b245149.txt">Table of n, a(n) for n = 10..150</a> %Y A245149 Column k=9 of A245151. %K A245149 nonn %O A245149 10,19 %A A245149 _Alois P. Heinz_, Jul 12 2014