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"A Simple Proof of 1 + 1/22 + 1/32 + ⋯ = ..."
Josef Hofbauer (2002)
- Josef Hofbauer:
A Simple Proof of 1 + 1/22 + 1/32 + ⋯ = π2/6 and Related Identities. Am. Math. Mon. 109(2): 196-200 (2002)
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