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If the sum of first 16 terms of the seri...

If the sum of first 16 terms of the series `s=cot^(-1)(2^2+1/2)+cot^(-1)(2^3+1/(2^2))+cot^(-1)(2^4+1/(2^3))+` up to terms is `cot^(-1)((1+2^n)/(2(2^(16)-1)))` , then find the value of `ndot`

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