modify a haskell program.

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i want to have this code but without n there. n is a number that first is one and everytime it must increase per one. how can i do this ? thanks...

f :: Integer -> Integer -> Integer -> Integer -> Integer
f n k d u 
           | k<0
           	= error "negative argument 1"
           | d<0
                = error "negative argument 2"
           | u<0
                = error "negative argument 3"
           | n^k + d^n >= u
                = n
           | otherwise
                = m where m = f (n+1) k d u

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also can anyone find this error ?
ERROR "homehaskelllab2.hs":15 - Syntax error in input (unexpected `|')

{- ASKISI 3 -}

lg :: Integer -> Integer
lg n
         | (n>=0) && (n<=1)
              = 1
         | otherwise
              = lg (abs( n `div` 2)) + 1
              
              
e :: Integer -> Integer -> Integer
e a b = e (w-1) 
  where w = ehlp :: Integer ->Integer -> Integer
            ehlp a b 
                     | lg a > lg b
                         = lg a where lg :: Integer -> Integer
                                      lg n
                                            | (n>=0) && (n<=1)
                                                = 1
                                            | otherwise
                                                = lg (abs( n `div` 2)) + 1
                     | otherwise
                         = lg b