%I A068215
%S A068215 2,6,30,210,1890,20790,270270,1896516717212415135141110350293750000,
%T A068215 1220462921565155916674902677397230198502690752000000000
%N A068215 Denominator of Borwein integral of order 2n+1.
%H A068215 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               BorweinIntegrals.html">Borwein Integrals</a>
%t A068215 i[n_] := Times@@(Sin[x/# ]&/@Range[1, n, 2])/x^((n+1)/2)/Pi; Denoninator[Table[Integrate[i[n], 
               {x, 0, \[Infinity]}], {n, 1, 19, 2}]]
%Y A068215 Cf. A068214.
%Y A068215 Sequence in context: A127482 A118747 A129779 this_sequence A096775 A002110 
               A118491
%Y A068215 Adjacent sequences: A068212 A068213 A068214 this_sequence A068216 A068217 
               A068218
%K A068215 nonn,frac,nice
%O A068215 0,1
%A A068215 Eric Weisstein (eric(AT)weisstein.com), Feb 21, 2002