什么是正确的斐波那契序列，我哪里做错了？

def fibonacci(n):
    if n <= 0:
        return []
    elif n == 1:
        return [0]
    elif n == 2:
        return [0, 1]
    
    fib_sequence = [0, 1]
    for i in range(2, n):
        next_number = fib_sequence[-1] + fib_sequence[-2]
        fib_sequence.append(next_number)
    
    return fib_sequence

# 示例调用
print(fibonacci(10))

[0, 1, 1, 2, 3, 5, 8, 13, 21, 34]