0,1

Table of n, a(n) for n=0..101.

Eric Weisstein's World of Mathematics, Xi-Function

0.497120778...

RealDigits[RiemannXi[1/2], 10, 102][[1]] (* Jean-François Alcover, Nov 04 2017 *)

(PARI) -(gamma(1/4)*zeta(1/2))/(8*Pi^(1/4)) \\ Michel Marcus, Nov 04 2017

Sequence in context: A021672 A278810 A176426 * A053511 A216676 A021909

Adjacent sequences: A114717 A114718 A114719 * A114721 A114722 A114723

nonn,cons

Eric W. Weisstein, Dec 27 2005

approved