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5 Gamma FunctionProperties

§5.16 Sums

5.16.1 k=1(-1)kψ(k) =-π28,
5.16.2 k=11kψ(k+1) =ζ(3)
=-12ψ′′(1).

For further sums involving the psi function see Hansen (1975, pp. 360–367). For sums of gamma functions see Andrews et al. (1999, Chapters 2 and 3) and §§15.2(i), 16.2.

For related sums involving finite field analogs of the gamma and beta functions (Gauss and Jacobi sums) see Andrews et al. (1999, Chapter 1) and Terras (1999, pp. 90, 149).