OFFSET
3,2
LINKS
Ernst D. Krupnikov and K. S. Kolbig, Some special cases of the generalized hypergeometric function _{q+1}F_q, J. Comp. Appl. Math. 78 (1997) 79-95.
FORMULA
psi''(1/4) = -2*(Pi^3+28*zeta(3)).
EXAMPLE
psi''(1/4) = -129.3277399...
MAPLE
2*(Pi^3+28*Zeta(3)); evalf(%) ;
MATHEMATICA
RealDigits[PolyGamma[2, 1/4], 10, 105][[1]] (* Vaclav Kotesovec, Aug 27 2024 *)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
R. J. Mathar, Aug 27 2024
STATUS
approved