oo _____ \ ` \ 2 \ / n\ \ \n2 / n / ------*x / n / 5 /____, n = 1
Sum(((n2^n)^2/5^n)*x^n, (n, 1, oo))
/ 2 | 2| | x*n2 |x*n2 | | ------------- for ------- < 1 | / 2\ 5 | | x*n2 | | 5*|1 - -----| | \ 5 / < | oo | ___ | \ ` | \ -n 2*n n | / 5 *n2 *x otherwise | /__, \n = 1
Piecewise((x*n2^2/(5*(1 - x*n2^2/5)), |x*n2^2|/5 < 1), (Sum(5^(-n)*n2^(2*n)*x^n, (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