oo _____ \ ` \ /n / n\\ \ atan|-*\1 + (-1) /| \ \2 / / ------------------- / 3 / n + 2 /____, n = 1
Sum(atan((n/2)*(1 + (-1)^n))/(n^3 + 2), (n, 1, oo))
oo _____ \ ` \ / / n\\ \ |n*\1 + (-1) /| \ atan|-------------| ) \ 2 / / ------------------- / 3 / 2 + n /____, n = 1
Sum(atan(n*(1 + (-1)^n)/2)/(2 + n^3), (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