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 A227811 #4 Jul 31 2013 17:06:46 %S A227811 3,20,88,334,1163,3756,11615,34655,100653,286033,798924,2199461, %T A227811 5983705,16115809,43036487,114089624,300554336,787451267,2053299653, %U A227811 5331645252,13793247146,35567344417,91447996464,234515163492,600012257027,1531951193292,3904053947702 %N A227811 Number of rooted identity trees with n nodes and exactly 7 subtrees from the root. %H A227811 Alois P. Heinz, <a href="/A227811/b227811.txt">Table of n, a(n) for n = 25..800</a> %Y A227811 Column k=7 of A227774. %K A227811 nonn %O A227811 25,1 %A A227811 _Alois P. Heinz_, Jul 31 2013