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 A160609 #13 Sep 08 2022 08:45:45
%S A160609 1,6,47,223,1643,6187,173339,148591,44999149,409402223,1067091709,
%T A160609 33428532191,1484643512329,5818648016477,866275665579983,
%U A160609 2261064256234247,4585711907324687,1773637758861597199
%N A160609 Numerator of Laguerre(n, -5).
%H A160609 G. C. Greubel, <a href="/A160609/b160609.txt">Table of n, a(n) for n = 0..464</a>
%t A160609 Numerator[Table[LaguerreL[n, -5], {n, 0, 50}]] (* _G. C. Greubel_, May 09 2018 *)
%o A160609 (PARI) for(n=0,30, print1(numerator(sum(k=0,n, binomial(n,k)*(5^k/k!))), ", ")) \\ _G. C. Greubel_, May 09 2018
%o A160609 (PARI) a(n) = numerator(pollaguerre(n, 0, -5)); \\ _Michel Marcus_, Feb 05 2021
%o A160609 (Magma) [Numerator((&+[Binomial(n,k)*(5^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // _G. C. Greubel_, May 09 2018
%Y A160609 For denominators see A160610.
%Y A160609 Cf. A289211.
%K A160609 nonn,frac
%O A160609 0,2
%A A160609 _N. J. A. Sloane_, Nov 14 2009