oo ____ \ ` \ n + 1 /n + 1 \ \ ---------*atan|------| ) 2 | 2 | / / 2 \ \n + 2/ / \n + 2/ /___, n = 1
Sum(((n + 1)/(n^2 + 2)^2)*atan((n + 1)/(n^2 + 2)), (n, 1, oo))
oo ______ \ ` \ /1 + n \ \ (1 + n)*atan|------| \ | 2| \ \2 + n / / -------------------- / 2 / / 2\ / \2 + n / /_____, n = 1
Sum((1 + n)*atan((1 + n)/(2 + n^2))/(2 + n^2)^2, (n, 1, oo))
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