OFFSET
0,1
REFERENCES
L. B. W. Jolley, Summation of Series, Dover, 1961, Eqs. (327), (344).
LINKS
R. J. Mathar, Table of Dirichlet L-series and prime zeta modulo functions for small moduli, Section 2.2 at m=8, r=2, s=4.
Michael I. Shamos, Shamos's catalog of the real numbers (2011).
FORMULA
Equals 11 * Pi^4 / (2^8 * 3 * sqrt(2)).
Equals 1 + Sum_{k>=1} ( (-1)^k/(4*k-1)^4 + (-1)^k/(4*k+1) ).
Equals Sum_{k>=0} (-1)^floor((k+1)/2) / (2*k+1)^4.
EXAMPLE
0.98654286069397050390153449061672691096683375790950...
MATHEMATICA
RealDigits[11*Pi^4/(768*Sqrt[2]), 10, 120][[1]] (* Amiram Eldar, Jun 13 2023 *)
CROSSREFS
KEYWORD
AUTHOR
Sean A. Irvine, Jul 30 2021
STATUS
approved