query: Trinomial Summation Equation
positive_passages.docid: 25673
positive_passages.text: Number after binomial coefficient
negative_passages.docid: 112827
negative_passages.text: Find the sum of the binomial coefficients
negative_passages.docid: 7891
negative_passages.text: Sum of nth roots of unity
negative_passages.docid: 146274
negative_passages.text: Fastest way to do this double summation?
negative_passages.docid: 142994
negative_passages.text: How to show $\sum_{i=1}^{n} \binom{i}{2}=\binom{n+1}{3}$?
negative_passages.docid: 30851
negative_passages.text: Find the summation $\frac{1}{1!}+\frac{1+2}{2!}+\frac{1+2+3}{3!}+ \cdots$
negative_passages.docid: 44354
negative_passages.text: Total number of solutions of an equation
negative_passages.docid: 102816
negative_passages.text: multiplication equivalent of the summation symbol
negative_passages.docid: 26491
negative_passages.text: Sum function of a series
negative_passages.docid: 3798
negative_passages.text: Finding formula for sum $S_n = \sum_{i=1}^n i(i-1)$
negative_passages.docid: 133680
negative_passages.text: On the equation $3x^3 + 4y^3 + 5z^3 = 0$
negative_passages.docid: 150355
negative_passages.text: Finding sum of binomial series
negative_passages.docid: 74315
negative_passages.text: Constraint on variables in summation
negative_passages.docid: 79
negative_passages.text: Find $a$, $b$ and $c$ that satisfy the following equations
negative_passages.docid: 47052
negative_passages.text: How can I simplify this expression involving binomial coefficients?
negative_passages.docid: 151085
negative_passages.text: Simplify the sum $ \sum_{i=0}^{k}(-1)^i i \binom{n}{i} \binom{n}{k-i}$
negative_passages.docid: 123853
negative_passages.text: Finding a formula for $1+\sum_{j=1}^n(j!)\cdot j$ using induction