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 A350469 #8 Feb 18 2024 03:33:51
%S A350469 1,1,19,37,379,1045,7867,26677,168283,648469,3677563,15350005,
%T A350469 81546139,357846229,1825676731,8266908853,41129090011,189933449365,
%U A350469 930257069563,4349059158133,21093686410267,99376751256661,479063106641467,2267844629261365,10890980548807771
%N A350469 a(n) = hypergeom([1/2 - n/2, -n/2], [-n], -72).
%F A350469 a(n) ~ (1 + sqrt(73))^(n+1) / (sqrt(73) * 2^(n+1)). - _Vaclav Kotesovec_, Feb 18 2024
%t A350469 Table[HypergeometricPFQ[{1/2 - n/2, -n/2}, {-n}, -72], {n, 0, 30}] (* _Vaclav Kotesovec_, Feb 18 2024 *)
%Y A350469 a(n) = A350470(9, n).
%K A350469 nonn
%O A350469 0,3
%A A350469 _Peter Luschny_, Mar 19 2022