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 A144616 #22 Dec 22 2024 09:01:39
%S A144616 1,1,1,1,1,1,1,467807924720320453655260875000,
%T A144616 17708695394150597647449176493763755467520000000,
%U A144616 8096800377970649960875919032857634716820075076062381575000000,2051564503724359411435325207087513361930253427318374450656960000000000
%N A144616 Denominator of n-th Borwein integral divided by Pi/2.
%C A144616 See comments in A068214.
%H A144616 Andrey Zabolotskiy, <a href="/A144616/b144616.txt">Table of n, a(n) for n = 0..20</a> (terms 0..12 from _Robert G. Wilson v_)
%t A144616 (Mma 7.0) Table[2/Pi*Integrate[Product[Sinc[x/k], {k, 1, 2*n + 1, 2}], {x, 0, Infinity }], {n, 0, 7}]
%Y A144616 Cf. A068214 (numerators).
%K A144616 nonn,frac
%O A144616 0,8
%A A144616 _N. J. A. Sloane_, Jan 15 2009, based on email from _Bill Gosper_
%E A144616 a(9)-a(11) from _Robert G. Wilson v_, Nov 04 2013
%E A144616 New name, offset changed from 1 to 0 by _Andrey Zabolotskiy_, Dec 14 2024