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 A055281 #11 Mar 05 2022 04:20:22 %S A055281 1,6,30,120,416,1268,3499,8833,20730,45625,95052,188638,358822,657169, %T A055281 1163791,1999495,3343038,5452829,8696613,13587910,20834487,31396728, %U A055281 46563312,68041054,98068941,139551650,196226198,272854810,375461896 %N A055281 Number of rooted trees with n nodes and 6 leaves. %H A055281 Georg Fischer, <a href="/A055281/b055281.txt">Table of n, a(n) for n = 7..159</a> %H A055281 <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a> %Y A055281 Column 6 of A055277. %K A055281 nonn %O A055281 7,2 %A A055281 _Christian G. Bower_, May 09 2000