oo ____ \ ` \ / n n \ \ |4 *x | / |-----*n + 1| / \ 2 / /___, n = 0
Sum(((4^n*x^n)/2)*n + 1, (n, 0, oo))
/ 4*x | ---------- for 4*|x| < 1 | 2 | (1 - 4*x) | | oo < ___ | \ ` | \ n n | / n*4 *x otherwise | /__, |n = 0 \ oo + ----------------------------- 2
oo + Piecewise((4*x/(1 - 4*x)^2, 4*|x| < 1), (Sum(n*4^n*x^n, (n, 0, oo)), True))/2
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