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 A115964 #13 Apr 06 2023 06:23:22
%S A115964 8,216,27000,9261000,12326391000,27081081027000,133049351085651000,
%T A115964 912585499096480209000,11103427767506874702903000,
%U A115964 270801499821725167129101267000,8067447481189014453943055845197000
%N A115964 Denominator of Sum_{i=1..n} 1/prime(i)^3.
%C A115964 Numerators are in A115963.
%C A115964 Also the primorials cubed. - _Reikku Kulon_, Sep 18 2008
%F A115964 a(n) = denominator of Sum_{i=1..n} 1/A000040(i)^3.
%F A115964 a(n) = A002110(n)^3. - _Reikku Kulon_, Sep 18 2008
%e A115964 1/8, 35/216, 4591/27000, 1601713/9261000, 2141141003/12326391000, 4716413174591/27081081027000.
%t A115964 a[n_]:=Product[Prime[i]^3, {i, 1, n}]; (* _Vladimir Joseph Stephan Orlovsky_, Dec 05 2008 *)
%Y A115964 Cf. A115963 (numerators).
%Y A115964 Cf. A024451 (numerator of sum_{i=1..n} 1/prime(i)), A002110 (primorial, also denominator of sum_{i=1..n} 1/prime(i)), A061015 (numerator of sum_{i=1..n} 1/prime(i)^2).
%Y A115964 Cf. A000040, A075986/A075987, A106830/A034386.
%Y A115964 Cf. A061742, A100778. - _Reikku Kulon_, Sep 18 2008
%K A115964 easy,frac,nonn
%O A115964 1,1
%A A115964 _Jonathan Vos Post_, Mar 14 2006