OFFSET
0,1
COMMENTS
The corresponding imaginary part of eta(i) is in A271524.
LINKS
Stanislav Sykora, Table of n, a(n) for n = 0..2000
Eric Weisstein's World of Mathematics, Dirichlet Eta Function
FORMULA
Equals real(eta(i)).
EXAMPLE
0.53259318176309616657096500819731904472778576814349219223974872595...
MATHEMATICA
First[RealDigits[Re[(1 - 2^(1 - I))*Zeta[I]], 10, 110]] (* Robert Price, Apr 09 2016 *)
PROG
(PARI) \\ The Dirichlet eta function (fails for z=1):
direta(z)=(1-2^(1-z))*zeta(z);
real(direta(I)) \\ Evaluation
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Stanislav Sykora, Apr 09 2016
STATUS
approved