content: sumaPrimerosNImparesEspecial :: Integer -> Integer
  sumaPrimerosNImparesEspecial n = sumAux ((2 * n) - 1)
  
  sumAux :: Integer -> Integer
  sumAux 1 = 4
  sumAux i
    | mod i 2 /= 0 = ((2 * i) + 2) + (sumAux (i - 1))
    | otherwise = 0 + (sumAux (i - 1))
  