[racket] Sum of Even

I am trying to do a recursive analysis on the Sum of even numbers function. So far I have already defined the function. I have found the base case. The hard part is finding the non-recursive definition. I'm having trouble of what non-recursive definition even means.

Step 1 - Base case: sumEven(N) = 2, if N = 1

Step 2 - Non-recursive definition =

(define sumEven
    (lambda (N)
      (cond((= N 1) 2)
           ((> N 0) (*(+ N 1)N)))))
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