1 (define pascal 2 (lambda (x y) 3 (cond [(= y 1) 1] 4 [(= x 1) 1] 5 [(= x y) 1] 6 [else (+ (pascal (- x 1) (- y 1)) 7 (pascal (- x 1) y))])))
(define pascal (lambda (x y) (cond [(= y 1) 1] [(= x 1) 1] [(= x y) 1] [else (+ (pascal (- x 1) (- y 1)) (pascal (- x 1) y))])))