Cohen, Eckford A property of Dedekind’s \(\psi\)-function. (English) Zbl 0144.28201 Proc. Am. Math. Soc. 12, 996 (1961). Reviewer: G. J. Rieger Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents MSC: 11M06 \(\zeta (s)\) and \(L(s, \chi)\) 11A25 Arithmetic functions; related numbers; inversion formulas Keywords:Euler product; Dirichlet series; Riemann zeta-function; Dedekind \(\psi\)-function PDF BibTeX XML Cite \textit{E. Cohen}, Proc. Am. Math. Soc. 12, 996 (1961; Zbl 0144.28201) Full Text: DOI Online Encyclopedia of Integer Sequences: The Dedekind psi function values of the powerful numbers, A001615(A001694(n)). The Euler phi function values of the powerful numbers, A000010(A001694(n)).