Solving $a_{n+1} = x^{a_n}$ for various $x$
15885
Infinite tetration, convergence radius
54355
$1+x+\ldots+x^n$ perfect square
20705
On equations $m^2+1=5^n$
119146
How to solve $n < 2^{n/8}$ for $n$?
132879
Matlab questions about $a_{n+1} = 4a_{n} + n +1$
146753
Find $x$ such that $(x^2 + 4x + 3)^x + (2x + 4)^x = (x^2 + 4x + 5)^x$
84335
Solving for $\sum_{n = 1}^{\infty} \frac{n^3}{8^n}$?
85917
Solve $(x+1)^y-x^z=1$
48211
When is $(a+b)^n \equiv a^n+b^n$?
108869
Solve the following equations for $x, (x ∈ N^+) (a)\ 2φ(x) = x; (b)\ 3φ(x) = x; (c)\ 4φ(x) = x.$
15985
simplify $(a_1 + a_2 +a_3+... +a_n)^m$
19500
How can I find $\gcd(a^m+1,a^n+1)$ with $a,m,n$ positive integers?
34059
$(a^{2^n}+1,a^{2^m}+1)=1 or 2$
134570
Using Inclusion/Exclusion to solve $x_1+x_2+x_3=15$ with $x_1,x_2\leq 5$ and $x_3\leq 7$ for non negative integers $x_1,x_2,x_3$
126820
How many positive integer solutions are there to the equality $x_1+x_2+...+x_r= n$?
53866
Prove $ x^n-1=(x-1)(x^{n-1}+x^{n-2}+...+x+1)$
146491
Number of solutions of $x_1+x_2+\dots+x_k=n$ with $x_i\le r$