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Answers
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3
Like Diophantine equation
1
A formula combining Euler $\phi$ and $\gcd$
9
Almost-converses to the AM-GM inequality
0
Formula for finite sum
1
A sum involving mod(n) arithmetic
7
A simple looking problem in partitions that became increasingly complex
2
Difference equation $A(n,x)=p(x)A(n-1,x-1)+q(x)A(n-1,x)$
1
Deriving a closed form for rolling a sum $n$ with $k$ dice using stars and bars
2
Polynomial of degree N with integer coefficient for a given root.
1
Hitting set problem variant
0
Computing Permutations with Partial Duplicates
6
Some weird “system” of inequalities in nonnegative integers.
2
Bilinear system of Diophantine Equations
10
What is this restricted sum of multinomial coefficients? (2)
4
Edge Covering Shortest path
1
“Bipartite” Travelling Salesman Problem?
6
Generalized Vieta-product
0
Examples of Amenable Groups other than Z_n
1
Solutions of a exponential diophantine equation involving the $\sigma$ function
1
Euler’s theorem for Tetration, Pentation, etc. (Superexponentiation)
7
Testing whether an integer is the sum of two squares
1
Lower bound for sum of binomial coefficients?
2
Are there consecutive integers of the form $a^2b^3$ where $a$, $b$ > 1?
7
What is Lagrange Inversion good for?
1
Is there a solution to the a+b^m=b+c^n=c+a^l for l,m,n >1 and a, b, c distinct odd primes?
1
Integer polynomials taking square values
1
Inverting the totient function
7
Hexagonal Triangular Squares
2
Ways to prove an inequality
1
Digraph intermediate connectivity
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