oo ____ \ ` \ 2 \ x - 3*x + 1 ) ------------ / 2 / x - 5*x + 6 /___, n = 1
Sum((x^2 - 3*x + 1)/(x^2 - 5*x + 6), (n, 1, oo))
/ 2 \ oo*\1 + x - 3*x/ ----------------- 2 6 + x - 5*x
oo*(1 + x^2 - 3*x)/(6 + x^2 - 5*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