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 A160608 #11 Sep 08 2022 08:45:45
%S A160608 1,1,1,1,1,5,5,35,5,35,175,1925,275,25025,175175,125125,875875,
%T A160608 14889875,14889875,282625,1414538125,9901766875,2222845625,
%U A160608 2505147019375,2505147019375,62628675484375,116310397328125,814172781296875
%N A160608 Denominator of Laguerre(n, -6).
%H A160608 G. C. Greubel, <a href="/A160608/b160608.txt">Table of n, a(n) for n = 0..500</a>
%t A160608 Denominator[Table[LaguerreL[n, -6], {n, 0, 50}]] (* _G. C. Greubel_, May 12 2018 *)
%o A160608 (PARI) for(n=0,30, print1(denominator(sum(k=0,n, binomial(n,k)*(6^k/k!))), ", ")) \\ _G. C. Greubel_, May 12 2018
%o A160608 (PARI) a(n) = denominator(pollaguerre(n, 0, -6)); \\ _Michel Marcus_, Feb 05 2021
%o A160608 (Magma) [Denominator((&+[Binomial(n,k)*(6^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // _G. C. Greubel_, May 12 2018
%Y A160608 For numerators see A160607.
%Y A160608 Cf. A289212.
%K A160608 nonn,frac
%O A160608 0,6
%A A160608 _N. J. A. Sloane_, Nov 14 2009