(define (ecf y)
	
	(define (helper x sum)
	(if 
		(=  x 0 ) 
		(+ 2 sum )
	
      		(helper (- x 1 ) (/ 1 (/ 1 (+ 1	(/ 1 (+ (* x 2) (/ 1 sum)))))))
	)
		(helper y 1)
)

)

(ecf 1)