query: Sum of quadratic series
positive_passages.docid: 16472
positive_passages.text: Sum of First $n$ Squares Equals $\frac{n(n+1)(2n+1)}{6}$
negative_passages.docid: 130548
negative_passages.text: What is the sum of the power series: $\sum_{k=2}^\infty\frac{x^k}{k(k-1)}$?
negative_passages.docid: 17056
negative_passages.text: How to find answer to the sum of series $\sum_{n=1}^{\infty}\frac{n}{2^n} $
negative_passages.docid: 131080
negative_passages.text: Geometric representation of the sum of a Geometric Series
negative_passages.docid: 145690
negative_passages.text: Quadratic algorithm for 4-SUM
negative_passages.docid: 134610
negative_passages.text: Find the sum of finite series $S=\sum_{k=1}^{2015}{(-1)^{\frac{k(k+1)}{2}}}k$
negative_passages.docid: 8806
negative_passages.text: Summation of binomial coefficients
negative_passages.docid: 107433
negative_passages.text: Prove the sum to n terms of the series
negative_passages.docid: 7177
negative_passages.text: Find sum of series $ \sum_{n=1}^{\infty} (n\cdot \ln \frac{2n+1}{2n-1} - 1) $
negative_passages.docid: 148143
negative_passages.text: Find the sum to n terms as well as the sum to infinity of the series:
negative_passages.docid: 1379
negative_passages.text: Summation of $n^2x^n$ terms
negative_passages.docid: 31731
negative_passages.text: How to turn this into an equation and then sum the series?
negative_passages.docid: 130083
negative_passages.text: Evaluating sum of a combination series
negative_passages.docid: 134633
negative_passages.text: How to sum this series for $\pi/2$ directly?
negative_passages.docid: 84159
negative_passages.text: The sum to n terms of the series $\frac{1}{\sqrt 1+\sqrt 3} + \frac{1}{\sqrt 3 +\sqrt 5} ....$
negative_passages.docid: 95739
negative_passages.text: Sum of tangent functions where arguments are in specific arithmetic series
negative_passages.docid: 151384
negative_passages.text: Summation of series involving binomial coefficients and polynomial of degree at most n-1