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 A055354 #14 Mar 14 2022 06:49:20
%S A055354 5760,940896,85049280,5731545600,324745027200,16481262283200,
%T A055354 778208622871680,35036455255401600,1529404526377728000,
%U A055354 65498410076875776000,2775672164602681344000,117137057625636739891200
%N A055354 Number of labeled mobiles (circular rooted trees) with n nodes and 7 leaves.
%H A055354 Georg Fischer, <a href="/A055354/b055354.txt">Table of n, a(n) for n = 8..250</a>
%H A055354 <a href="/index/Mo#mobiles">Index entries for sequences related to mobiles</a>
%t A055354 m = 20; L[x_] = Log[1 - x] + O[x]^m // Normal; A[_] = 0;
%t A055354 Do[A[x_] = x y - x L[A[x]] + O[x]^k // Normal // Expand, {k, m}];
%t A055354 Drop[(SeriesCoefficient[#, {y, 0, 7}] & /@ CoefficientList[A[x], x]) * Range[0, m - 1]!, 8] (* _Jean-François Alcover_, Nov 01 2019 *)
%Y A055354 Column 7 of A055349.
%K A055354 nonn
%O A055354 8,1
%A A055354 _Christian G. Bower_, May 15 2000