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 A055292 #11 Mar 07 2022 10:22:27 %S A055292 1,2,6,14,32,64,123,219,377,616,978,1496,2236,3251,4637,6475,8899, %T A055292 12025,16036,21091,27432,35271,44920,56656,70873,87924,108298,132438, %U A055292 160943,194358,233408,278755,331266,391737,461193,540581,631103 %N A055292 Number of trees with n nodes and 5 leaves. %H A055292 Georg Fischer, <a href="/A055292/b055292.txt">Table of n, a(n) for n = 6..250</a> %H A055292 <a href="/index/Tra#trees">Index entries for sequences related to trees</a> %Y A055292 Column 5 of A055290. %K A055292 nonn %O A055292 6,2 %A A055292 _Christian G. Bower_, May 09 2000