How to Loop to define locations along the length of the beam

Hello,

i need help with the follwing:

if i have a beam with length " L", I would like to check the beam for shear and moment at certain locations that i will define as follows:

e , b, S are variables defined by the designer

the first location will be at a distance 1.5*e+ b

the second location will be at distance = first hole location + S

the third location will be at distance = second hole location +S

and so on!!!! we keep doing the above until the location goes past the beam midlength L/2. if the location is > L/2, then we dont use this location.

Then we need to run the above procedure and determine the locations from the right end, in other words the locations will be symmetrical about the beam midlength.

i would like to see the locations in a table or array so i can use my moment and shear equations to calculate the shear and moment at the locations specified in the table or array. Thanks!