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 A245147 #4 Jul 12 2014 17:52:10 %S A245147 1,0,0,0,0,0,0,1,1,1,1,1,1,1,3,3,5,5,7,7,9,13,16,21,28,34,42,52,70,85, %T A245147 113,141,185,227,290,371,474,602,771,983,1254,1583,2038,2582,3315, %U A245147 4217,5405,6867,8783,11201,14318,18285,23395,29886,38207,48765,62428 %N A245147 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 7. %H A245147 Alois P. Heinz, <a href="/A245147/b245147.txt">Table of n, a(n) for n = 8..150</a> %Y A245147 Column k=7 of A245151. %K A245147 nonn %O A245147 8,15 %A A245147 _Alois P. Heinz_, Jul 12 2014