Equation involved in generating function of divisor function
89136
How prove this $\sum_{k=1}^{2^{n-1}}\sigma{(2^n-2k+1)}\sigma{(2k-1)}=8^{n-1}$
59208
How to explain the equation about summation?
10376
Compute the moment generating function of $Y = X_1X_2 + X_1X_3 + X_2X_3$
58480
Computing sums of divisors in $O(\sqrt n)$ time?
81753
Algorithm for computing Hadamard product of two rational generating functions
74827
Integer ordered pair of $(x,y)$ in complex algebraic equation
24019
Solving Recurrence Relation Denominator
99739
The diophantine equation $x^2+y^2=3z^2$
59091
A quartic diophantine equation
122678
Find the probability generating function of $Z=\sum_{i=1}^{N}X_i.$
50772
Solving a Linear Diophantine Equation
80058
Three variable, third degree Diophantine equation
39909
Getting a closed form from $\sum_{i=1}^{n-1} \sum_{j=i+1}^{n} \sum_{k=1}^{j} 1$
23726
A closed form for $1^{2}-2^{2}+3^{2}-4^{2}+ \cdots + (-1)^{n-1}n^{2}$
115969
Amount of generators for cyclic group and Euler's function
53503
Solving the diophantine equation $y^{2}=x^{3}-2$
109304
The roots of the equation $z^n=(1+z)^n$...