oo ___ \ ` \ n / a*(x - 5) /__, n = 0
Sum(a*(x - 5)^n, (n, 0, oo))
// 1 \ || ----- for |-5 + x| < 1| || 6 - x | || | || oo | a*|< ___ | || \ ` | || \ n | || / (-5 + x) otherwise | || /__, | \\n = 0 /
a*Piecewise((1/(6 - x), |-5 + x| < 1), (Sum((-5 + x)^n, (n, 0, 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