oo ____ \ ` \ / n \ \ |(2*x) | ) |------ + 1| / | 2 | / \ n / /___, n = 1
Sum((2*x)^n/n^2 + 1, (n, 1, oo))
//polylog(2, 2*x) for 2*|x| <= 1\ || | || oo | || ____ | || \ ` | || \ n n | oo + |< \ 2 *x | || ) ----- otherwise | || / 2 | || / n | || /___, | || n = 1 | \\ /
oo + Piecewise((polylog(2, 2*x), 2*|x| <= 1), (Sum(2^n*x^n/n^2, (n, 1, oo)), True))
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