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 A129923 #15 Sep 28 2024 05:40:20
%S A129923 24,144,1008,8064,72576,725760,7983360,95800320,1245404160,
%T A129923 17435658240,261534873600,4184557977600,71137485619200,
%U A129923 1280474741145600,24329020081766400,486580401635328000,10218188434341888000
%N A129923 a(n) = (n+5)! / 5.
%H A129923 G. C. Greubel, <a href="/A129923/b129923.txt">Table of n, a(n) for n = 0..440</a>
%F A129923 E.g.f.: 24/(1 - x)^6. - _G. C. Greubel_, Sep 28 2024
%t A129923 Table[(n+5)!/5, {n, 0, 5 + 25}]
%t A129923 Range[5,30]!/5 (* _Harvey P. Dale_, Mar 29 2023 *)
%o A129923 (PARI) a(n)=(n+5)!/5;
%o A129923 (Magma) [Factorial(n+5)/5: n in [0..30]]; // _G. C. Greubel_, Sep 28 2024
%o A129923 (SageMath) [factorial(n+5)//5 for n in range(31)] # _G. C. Greubel_, Sep 28 2024
%Y A129923 Cf. A001710, A001715, A002301, A133799.
%K A129923 nonn,easy
%O A129923 0,1
%A A129923 _Roger L. Bagula_, Jun 06 2007
%E A129923 Edited by _Ralf Stephan_, Nov 10 2013