MathSciNet bibliographic data MR323067 (48 #1425) 65B10 (40A99) Hovstad, Rolf M. The series $\sum \sb{k=1}\sp{\infty }\ 1/k\sp{2p}$$\sum \sb{k=1}\sp{\infty }\ 1/k\sp{2p}$, the area of the unit circle and Leibniz' formula. Nordisk Mat. Tidskr. 20 (1972), 92–98, 120. Links to the journal or article are not yet available

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