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 A245146 #4 Jul 12 2014 17:53:25 %S A245146 1,0,0,0,0,0,1,1,1,1,1,1,3,3,5,5,7,7,13,14,21,26,34,40,61,72,100,127, %T A245146 171,209,295,367,499,638,851,1083,1469,1879,2512,3257,4320,5576,7454, %U A245146 9662,12833,16752,22163,28874,38308,50056,66232,86865,114784,150429 %N A245146 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 6. %H A245146 Alois P. Heinz, <a href="/A245146/b245146.txt">Table of n, a(n) for n = 7..150</a> %Y A245146 Column k=6 of A245151. %K A245146 nonn %O A245146 7,13 %A A245146 _Alois P. Heinz_, Jul 12 2014