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(1/n)-(1/(2n^2))+(1/(6n^3))-(1/(1+n))-(1/(2(1+n)^2))-(1/(6(n+1)^3))-(1/(24(n+1)^4))
(1/n)-(1/(2n^2))+(1/(6n^3))-(1/(1+n))-(1/(2(1+n)^2))-(1/(6(n+1)^3))-(1/(24(n+1)^4))
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