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 A010795 #25 Jul 08 2025 01:46:00
%S A010795 1,7,112,3024,120960,6652800,479001600,43589145600,4881984307200,
%T A010795 659067881472000,105450861035520000,19719311013642240000,
%U A010795 4259371178946723840000,1052064681199840788480000,294578110735955420774400000,92792104881825957543936000000
%N A010795 a(n) = n!*(n+6)! / 6!.
%H A010795 Delbert L. Johnson, <a href="/A010795/b010795.txt">Table of n, a(n) for n = 0..250</a>
%H A010795 <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>.
%F A010795 From _Amiram Eldar_, Sep 27 2022: (Start)
%F A010795 Sum_{n>=0} 1/a(n) = 720*BesselI(6,2).
%F A010795 Sum_{n>=0} (-1)^n/a(n) = 720*BesselJ(6,2). (End)
%F A010795 a(n) = 1/([x^n] hypergeom([], [7], x)).- _Peter Luschny_, Sep 13 2024
%p A010795 f := n->n!*(n+6)!/6!;
%t A010795 Table[n! * (n + 6)!/6!, {n, 0, 15}] (* _Amiram Eldar_, Sep 27 2022 *)
%o A010795 (PARI) a(n)=n!^2*binomial(n+6,6) \\ _Charles R Greathouse IV_, Oct 23 2023
%Y A010795 Cf. A010791, A010792, A010793, A010794.
%K A010795 nonn
%O A010795 0,2
%A A010795 _N. J. A. Sloane_