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 A341917 #8 Mar 13 2021 17:03:01
%S A341917 1,10,80,610,4625,35322,272800,2132310,16861455,134781350,1088074064,
%T A341917 8863227100,72789560025,602232150810,5016320750400,42041168169712,
%U A341917 354326295908580,3001705818071400,25549873091193600,218426240780417250,1874878554813727815,16153461053030605590
%N A341917 Number of strong triangulations of a fixed pentagon with n interior nodes.
%H A341917 Andrew Howroyd, <a href="/A341917/b341917.txt">Table of n, a(n) for n = 1..500</a>
%F A341917 a(n) = 60*(13*n+9)*(4*n+5)!/((3*n+9)!*(n-1)!).
%o A341917 (PARI) a(n)={60*(13*n+9)*(4*n+5)!/((3*n+9)!*(n-1)!)}
%Y A341917 Column k=2 of A341856.
%Y A341917 Cf. A341853.
%K A341917 nonn
%O A341917 1,2
%A A341917 _Andrew Howroyd_, Feb 23 2021