Elisp - Function returning a list

[steve-humphreys]

I am having a go at making a function that returns a list of numbers, but need 
it interactive.
Unsure this is good

(defun typh-agenda-tgrd (tstr tend tskp)
   (interactive "n Start_Time: n End_Time: n Skip_Time: ")
   (number-sequence tstr tend tskp))