Fibonacci

def fibonacci_less_than(n):
    if n<0:
        return[0]
    
    sequence=[0,1]
    while len(sequence) <= n:
        next_value=sequence(len(sequence)-1) + sequence(len(sequence)-2)
        if next_value <= n:
            sequence.append(next_value)
    return sequence
    
print(fibonacci_less_than(22))