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 A131678 #18 Feb 22 2017 02:23:31
%S A131678 1,9,9065925,7310502643675,176327300873583405,483041091658815453456,
%T A131678 320648364425775841520065,79074323113562613259765875,
%U A131678 9403175220694650942397475625,639220975955961365494757841040,27923612862792073359883606310061,852385355738368243011331354210716,19346552845649626158477975728463925
%N A131678 a(n) = (Product_{i=1..8} n^i+i) / 8!.
%C A131678 See A131685 about well-definedness. - _M. F. Hasler_, May 02 2015
%H A131678 G. C. Greubel, <a href="/A131678/b131678.txt">Table of n, a(n) for n = 0..1000</a>
%t A131678 Table[Product[ n^i + i, {i, 1, 8}]/8!, {n, 0, 12}] (* _Michael De Vlieger_, Jan 03 2016 *)
%o A131678 (PARI) A131678(n,k=8)=prod(i=1,k,(n^i+i))/k! \\ Changing the optional 2nd argument allows one to produce A000027 (k=1), A064808 (k=2), A131509 (k=3), A129995(k=4), A131675 (k=5), ..., A131680 (k=10). - _M. F. Hasler_, May 02 2015
%K A131678 nonn
%O A131678 0,2
%A A131678 _Alexander R. Povolotsky_, Sep 15 2007
%E A131678 Definition made explicit by _M. F. Hasler_, May 02 2015