
    Given a client's risk profile number in a standardized investment assessment sequence, determine their optimal portfolio allocation strategy number where each strategy is derived using the pattern: the first two values are 1, and subsequent values are calculated by adding the numbers at positions a(a(n-1)) and a(n-a(n-1)) in the sequence. This allocation system ensures a systematic approach to portfolio diversification based on proven mathematical relationships between risk levels and investment strategies.
    

    
def sequence(n):
    """
    Given a client's risk profile number in a standardized investment assessment sequence, determine their optimal portfolio allocation strategy number where each strategy is derived using the pattern: the first two values are 1, and subsequent values are calculated by adding the numbers at positions a(a(n-1)) and a(n-a(n-1)) in the sequence. This allocation system ensures a systematic approach to portfolio diversification based on proven mathematical relationships between risk levels and investment strategies.
    

    """
def sequence(n):
    """
    Given a client's risk profile number in a standardized investment assessment sequence, determine their optimal portfolio allocation strategy number where each strategy is derived using the pattern: the first two values are 1, and subsequent values are calculated by adding the numbers at positions a(a(n-1)) and a(n-a(n-1)) in the sequence. This allocation system ensures a systematic approach to portfolio diversification based on proven mathematical relationships between risk levels and investment strategies.
    

    """
    if n == 1 or n == 2:
        return 1
    else:
        return sequence(sequence(n - 1)) + sequence(n - sequence(n - 1))