cube = lambda x: x**3

def fibonacci(n):
    if n == 0:
        return []
    elif n == 1:
        return [0]
    else:
        list_fib=[0,1]
    while len(list_fib) < n:
        next_num=list_fib[-1]+list_fib[-2]
        list_fib.append(next_num)
    return list_fib