OFFSET
0,1
LINKS
Michael I. Shamos, Shamos's catalog of the real numbers (2011).
FORMULA
Equals 1 + Sum_{k>=1} ( (-1)^k/(5*k-1)^4 + (-1)^k/(5*k+1)^4 ).
EXAMPLE
0.99551082651341250944555260099860...
MATHEMATICA
RealDigits[(91 + 45*Sqrt[5]) * Pi^4 / 18750, 10, 120][[1]] (* Amiram Eldar, Jun 20 2023 *)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Sean A. Irvine, Aug 20 2021
STATUS
approved