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 A082034 #14 Sep 08 2022 08:45:09
%S A082034 1,5,18,78,408,2520,18000,146160,1330560,13426560,148780800,
%T A082034 1796256000,23471078400,330032102400,4969162598400,79768136448000,
%U A082034 1359981342720000,24542432538624000,467373280518144000,9366672731480064000
%N A082034 a(n) = (4*n + 1)*n!.
%C A082034 A row of the array A082037.
%H A082034 Vincenzo Librandi, <a href="/A082034/b082034.txt">Table of n, a(n) for n = 0..400</a>
%F A082034 a(n) = A016813(n)*n!.
%F A082034 (-4*n+3)*a(n) + n*(4*n+1)*a(n-1) = 0. - _R. J. Mathar_, Nov 07 2014
%F A082034 4*a(n) + (-4*n-7)*a(n-1) + 3*(n-1)*a(n-2) = 0. - _R. J. Mathar_, Nov 07 2014
%t A082034 Table[(4n+1)n!,{n,0,20}] (* _Harvey P. Dale_, Mar 02 2022 *)
%o A082034 (Magma) [(4*n+1)*Factorial(n) : n in [0..20]]; // _Vincenzo Librandi_, Sep 22 2011
%Y A082034 Cf. A082033, A007680.
%K A082034 nonn,easy
%O A082034 0,2
%A A082034 _Paul Barry_, Apr 02 2003