30 _____ \ ` \ x -x \ - --- \ k k ) e + e / --------- / 4 / (k + 2) /____, n = 1
Sum((exp(x/k) + exp((-x)/k))/(k + 2)^4, (n, 1, 30))
/ x -x \ | - ---| | k k | 30*\e + e / -------------- 4 (2 + k)
30*(exp(x/k) + exp(-x/k))/(2 + k)^4
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