
    Design a function that calculates a student's cumulative achievement score in their personalized learning path by summing the weighted scores of completed difficulty levels, where each level is represented by consecutive odd numbers and weighted by squaring them. The function should take the total number of difficulty levels as input and process only the odd-numbered levels to determine the final achievement score.
    

    
def square_Sum(n):
    """
    Design a function that calculates a student's cumulative achievement score in their personalized learning path by summing the weighted scores of completed difficulty levels, where each level is represented by consecutive odd numbers and weighted by squaring them. The function should take the total number of difficulty levels as input and process only the odd-numbered levels to determine the final achievement score.
    

    """
def square_Sum(n):
    """
    Design a function that calculates a student's cumulative achievement score in their personalized learning path by summing the weighted scores of completed difficulty levels, where each level is represented by consecutive odd numbers and weighted by squaring them. The function should take the total number of difficulty levels as input and process only the odd-numbered levels to determine the final achievement score.
    

    """
    return int(n * (4 * n * n - 1) / 3)