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 A055317 #17 Sep 08 2022 08:45:01
%S A055317 6,630,30240,1058400,31752000,880165440,23471078400,616475059200,
%T A055317 16182470304000,428535787680000,11519041972838400,315583670578176000,
%U A055317 8836342776188928000,253325921601392640000,7444680145020518400000
%N A055317 Number of labeled trees with n nodes and 5 leaves.
%H A055317 Vincenzo Librandi, <a href="/A055317/b055317.txt">Table of n, a(n) for n = 6..200</a>
%H A055317 <a href="/index/Tra#trees">Index entries for sequences related to trees</a>
%F A055317 (n!/5!)*Stirling2(n-2, n-5). - _Vladeta Jovovic_, Jan 28 2004
%F A055317 a(n) = n! * (n-5)^2*(n-4)^2*(n-3)*(n-2)/5760. - _Vaclav Kotesovec_, Jul 25 2014
%t A055317 Table[n! * (n-5)^2*(n-4)^2*(n-3)*(n-2)/5760,{n,6,20}] (* _Vaclav Kotesovec_, Jul 25 2014 *)
%o A055317 (Magma) [Factorial(n)*(n-5)^2*(n-4)^2*(n-3)*(n-2)/5760: n in [6..25]]; // _Vincenzo Librandi_, Jul 25 2014
%Y A055317 Column 5 of A055314.
%K A055317 nonn
%O A055317 6,1
%A A055317 _Christian G. Bower_, May 11 2000