Infinite summation

1. The problem statement, all variables and given/known data

Define Tn as the sum of the first n terms, for various values of a and x, e.g. T9(2,5) is the sume of the first nine terms when a = 2 and x = 5.

The first n terms are 0-10, including both 0 and 10.

2. Relevant equations

T0=1, T1= (xlna)/1, T2= [(xlna)^2]/2!, T3= [(xlna)^3]/3!.... Tn = [(xlna)^n]/n!


3. The attempt at a solution

Using a graphing calculator, seq(xlna)n/n!,n,0,10)

The relationship between x and a is: n --> infinity, Sn --> ax, Sn represents the sum of n.

In order to "define" it, should I simply put the equation into summation notation or is it looking for something else?