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 A010799 #27 Aug 14 2023 08:27:29
%S A010799 1,720,1814400,12192768000,184354652160000,5574884681318400000,
%T A010799 309071606732292096000000,29374165503837040803840000000,
%U A010799 4536546120412592581745049600000000
%N A010799 a(n) = n!*(n+1)!*(n+2)!*(n+3)!*(n+4)! / ( 2!*3!*4!*5! ).
%H A010799 Vincenzo Librandi, <a href="/A010799/b010799.txt">Table of n, a(n) for n = 1..96</a>
%H A010799 <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>
%t A010799 With[{c=Times@@(Range[2,5]!),l=Times@@@Partition[Range[20]!,5,1]}, #/c&/@l] (* _Harvey P. Dale_, Nov 10 2011 *)
%Y A010799 Column 5 in triangle A009963.
%K A010799 nonn,easy
%O A010799 1,2
%A A010799 _N. J. A. Sloane_
%E A010799 Offset changed to 1 by _Seiichi Manyama_, Aug 14 2023