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 A061407 #11 Aug 16 2017 04:10:22
%S A061407 10321920,371589120,29727129600,3923981107200,753404372582400,
%T A061407 195885136871424000,65817405988798464000,27643310515295354880000,
%U A061407 14153374983831221698560000,8661865490104707679518720000
%N A061407 Denominators in the series for Bessel function J8(x).
%H A061407 G. C. Greubel, <a href="/A061407/b061407.txt">Table of n, a(n) for n = 0..220</a> (terms 0..50 from T. D. Noe)
%H A061407 <a href="/index/Be#Bessel">Index entries for sequences related to Bessel functions or polynomials</a>
%t A061407 Denominator[Take[CoefficientList[Series[BesselJ[8, x], {x, 0, 50}], x], {9, -1, 2}]] (* _G. C. Greubel_, Aug 15 2017 *)
%Y A061407 J1: A002474, J2: A002506, J3: A014401 for formula etc.
%K A061407 nonn,easy
%O A061407 0,1
%A A061407 _Frank Ellermann_, Jun 11 2001