oo ____ \ ` \ n*x / x \ \ 5 *atan|------------| / | n*x | / \7 *(x - 1)/ /___, n = 1
Sum(5^(n*x)*atan(x/((7^(n*x)*(x - 1)))), (n, 1, oo))
oo ____ \ ` \ / -n*x\ \ n*x |x*7 | / 5 *atan|-------| / \ -1 + x/ /___, n = 1
Sum(5^(n*x)*atan(x*7^(-n*x)/(-1 + x)), (n, 1, oo))
x^n/n
(x-1)^n
1/2^(n!)
n^2/n!
x^n/n!
k!/(n!*(n+k)!)
csc(n)^2/n^3
1/n^2
1/n^4
1/n^6
1/n
(-1)^n
(-1)^(n + 1)/n
(n + 2)*(-1)^(n - 1)
(3*n - 1)/(-5)^n
(-1)^(n - 1)*n/(6*n - 5)
(-1)^(n + 1)/n*x^n
(3*n - 1)/(-5)^n