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