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 A055323 #25 Jan 24 2025 18:29:36
%S A055323 12,159588,188972784,82965682800,21005730345600,3748679961586560,
%T A055323 526390865228067840,62217055603837854720,6471318681640036224000,
%U A055323 610909570703009305728000,53525038934303849706393600,4425402761285129060851814400,349680886000693821465783091200,26668509525935198065515571200000
%N A055323 Number of labeled trees with n nodes and 11 leaves.
%H A055323 Vincenzo Librandi, <a href="/A055323/b055323.txt">Table of n, a(n) for n = 12..200</a>
%H A055323 <a href="/index/Tra#trees">Index entries for sequences related to trees</a>
%F A055323 a(n) = (n!/11!)*Stirling2(n-2, n-11). - _Vladeta Jovovic_, Jan 28 2004
%F A055323 a(n) = n! * (n-11)^2*(n-10)^2*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(15*n^6 - 825*n^5 + 18615*n^4 - 220127*n^3 + 1435578*n^2 - 4882792*n + 6746112) / 111244864389120000. - _Vaclav Kotesovec_, Jul 25 2014
%t A055323 Table[n! * (n-11)^2*(n-10)^2*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(15*n^6 - 825*n^5 + 18615*n^4 - 220127*n^3 + 1435578*n^2 - 4882792*n + 6746112) / 111244864389120000,{n,12,25}] (* _Vaclav Kotesovec_, Jul 25 2014 *)
%o A055323 (Magma) [Factorial(n)*(n-11)^2*(n-10)^2*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(15*n^6 - 825*n^5 + 18615*n^4 - 220127*n^3 + 1435578*n^2 - 4882792*n + 6746112) / 111244864389120000: n in [12..25]]; // _Vincenzo Librandi_, Jul 25 2014
%Y A055323 Column 11 of A055314.
%K A055323 nonn
%O A055323 12,1
%A A055323 _Christian G. Bower_, May 11 2000