oo ___ \ ` \ 2*x / 2 *(x - 1/4)*x /__, n = 1
Sum((2^(2*x)*(x - 1/4))*x, (n, 1, oo))
2*x oo*x*2 *(-1/4 + x)
oo*x*2^(2*x)*(-1/4 + x)
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