explicit formula for $a_n$ and $b_n$
127111
induction with 2 recursive sequnces
61592
Exponential generating function to find recurrence formula $a_n$
114404
For which positive integer values of $n$ does $a|mn-b?$
151520
About the parity of the product $(a_1-1)(a_2-2)\cdots(a_n-n)$
48081
Prove that for all $n \in \mathbb{N}$: $2^{n-1}(a^n + b^n) \ge (a + b)^n$
129920
Is there any formula for number of divisors of $a \times b$?
53443
Does $a_n \sim b_n$ imply $\sum_n a_n \sim \sum_n b_n$ for $a_n, b_n>0$?
104274
Express $C$ interms of the sets $A_n$
62175
A general formula for $n$ distinguishable arrangements of length $\ell$ of a sequence of a given size?
134840
Generators and relations for $\text{PSL}(2, \mathbb{F}_q)$
77128
Necessary and Sufficient conditions for $(i \, j)$ and $(1 \, 2 \, \dotsc \, n)$ generate $S_n$.
46780
Proving $((a\bmod n) (b\bmod n))\bmod n = ab\bmod n $
106280
Integrating the formula for the sum of the first $n$ natural numbers
108310
$(a_1 a_2 \cdots a_n)^2=e$ in a finite abelian group
89175
Proof of $(a+b)^{n+1}$
75199
$a \equiv b \pmod n$ and $c\equiv d \pmod n$ implies $ac \equiv bd \pmod n$
78298
On the nilpotence of the matrix $AB-BA$